20921439600

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{1163}}^1$

素因数の和:1469

約数の個数: 360

約数和(自身を含む): 76780978560

約数和(自身を除く): 55859538960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 30, 36, 38, 40, 45, 48, 50, 57, 60, 72, 75, 76, 80, 90, 95, 100, 114, 120, 144, 150, 152, 171, 180, 190, 200, 225, 228, 240, 263, 285, 300, 304, 342, 360, 380, 400, 450, 456, 475, 526, 570, 600, 684, 720, 760, 789, 855, 900, 912, 950, 1052, 1140, 1163, 1200, 1315, 1368, 1425, 1520, 1578, 1710, 1800, 1900, 2104, 2280, 2326, 2367, 2630, 2736, 2850, 3156, 3420, 3489, 3600, 3800, 3945, 4208, 4275, 4560, 4652, 4734, 4997, 5260, 5700, 5815, 6312, 6575, 6840, 6978, 7600, 7890, 8550, 9304, 9468, 9994, 10467, 10520, 11400, 11630, 11835, 12624, 13150, 13680, 13956, 14991, 15780, 17100, 17445, 18608, 18936, 19725, 19988, 20934, 21040, 22097, 22800, 23260, 23670, 24985, 26300, 27912, 29075, 29982, 31560, 34200, 34890, 37872, 39450, 39976, 41868, 44194, 44973, 46520, 47340, 49970, 52335, 52600, 55824, 58150, 59175, 59964, 63120, 66291, 68400, 69780, 74955, 78900, 79952, 83736, 87225, 88388, 89946, 93040, 94680, 99940, 104670, 105200, 110485, 116300, 118350, 119928, 124925, 132582, 139560, 149910, 157800, 167472, 174450, 176776, 179892, 189360, 198873, 199880, 209340, 220970, 224865, 232600, 236700, 239856, 249850, 261675, 265164, 279120, 299820, 305869, 315600, 331455, 348900, 353552, 359784, 374775, 397746, 399760, 418680, 441940, 449730, 465200, 473400, 499700, 523350, 530328, 552425, 599640, 611738, 662910, 697800, 719568, 749550, 795492, 837360, 883880, 899460, 917607, 946800, 994365, 999400, 1046700, 1060656, 1104850, 1124325, 1199280, 1223476, 1325820, 1395600, 1499100, 1529345, 1590984, 1657275, 1767760, 1798920, 1835214, 1988730, 1998800, 2093400, 2209700, 2248650, 2446952, 2651640, 2752821, 2998200, 3058690, 3181968, 3314550, 3597840, 3670428, 3977460, 4186800, 4419400, 4497300, 4588035, 4893904, 4971825, 5303280, 5505642, 5811511, 5996400, 6117380, 6629100, 7340856, 7646725, 7954920, 8838800, 8994600, 9176070, 9943650, 11011284, 11623022, 12234760, 13258200, 13764105, 14681712, 15293450, 15909840, 17434533, 17989200, 18352140, 19887300, 22022568, 22940175, 23246044, 24469520, 26516400, 27528210, 29057555, 30586900, 34869066, 36704280, 39774600, 44045136, 45880350, 46492088, 52303599, 55056420, 58115110, 61173800, 68820525, 69738132, 73408560, 79549200, 87172665, 91760700, 92984176, 104607198, 110112840, 116230220, 122347600, 137641050, 139476264, 145287775, 174345330, 183521400, 209214396, 220225680, 232460440, 261517995, 275282100, 278952528, 290575550, 348690660, 367042800, 418428792, 435863325, 464920880, 523035990, 550564200, 581151100, 697381320, 836857584, 871726650, 1046071980, 1101128400, 1162302200, 1307589975, 1394762640, 1743453300, 2092143960, 2324604400, 2615179950, 3486906600, 4184287920, 5230359900, 6973813200, 10460719800, 20921439600]

約数ペア:

[(1, 20921439600), (2, 10460719800), (3, 6973813200), (4, 5230359900), (5, 4184287920), (6, 3486906600), (8, 2615179950), (9, 2324604400), (10, 2092143960), (12, 1743453300), (15, 1394762640), (16, 1307589975), (18, 1162302200), (19, 1101128400), (20, 1046071980), (24, 871726650), (25, 836857584), (30, 697381320), (36, 581151100), (38, 550564200), (40, 523035990), (45, 464920880), (48, 435863325), (50, 418428792), (57, 367042800), (60, 348690660), (72, 290575550), (75, 278952528), (76, 275282100), (80, 261517995), (90, 232460440), (95, 220225680), (100, 209214396), (114, 183521400), (120, 174345330), (144, 145287775), (150, 139476264), (152, 137641050), (171, 122347600), (180, 116230220), (190, 110112840), (200, 104607198), (225, 92984176), (228, 91760700), (240, 87172665), (263, 79549200), (285, 73408560), (300, 69738132), (304, 68820525), (342, 61173800), (360, 58115110), (380, 55056420), (400, 52303599), (450, 46492088), (456, 45880350), (475, 44045136), (526, 39774600), (570, 36704280), (600, 34869066), (684, 30586900), (720, 29057555), (760, 27528210), (789, 26516400), (855, 24469520), (900, 23246044), (912, 22940175), (950, 22022568), (1052, 19887300), (1140, 18352140), (1163, 17989200), (1200, 17434533), (1315, 15909840), (1368, 15293450), (1425, 14681712), (1520, 13764105), (1578, 13258200), (1710, 12234760), (1800, 11623022), (1900, 11011284), (2104, 9943650), (2280, 9176070), (2326, 8994600), (2367, 8838800), (2630, 7954920), (2736, 7646725), (2850, 7340856), (3156, 6629100), (3420, 6117380), (3489, 5996400), (3600, 5811511), (3800, 5505642), (3945, 5303280), (4208, 4971825), (4275, 4893904), (4560, 4588035), (4652, 4497300), (4734, 4419400), (4997, 4186800), (5260, 3977460), (5700, 3670428), (5815, 3597840), (6312, 3314550), (6575, 3181968), (6840, 3058690), (6978, 2998200), (7600, 2752821), (7890, 2651640), (8550, 2446952), (9304, 2248650), (9468, 2209700), (9994, 2093400), (10467, 1998800), (10520, 1988730), (11400, 1835214), (11630, 1798920), (11835, 1767760), (12624, 1657275), (13150, 1590984), (13680, 1529345), (13956, 1499100), (14991, 1395600), (15780, 1325820), (17100, 1223476), (17445, 1199280), (18608, 1124325), (18936, 1104850), (19725, 1060656), (19988, 1046700), (20934, 999400), (21040, 994365), (22097, 946800), (22800, 917607), (23260, 899460), (23670, 883880), (24985, 837360), (26300, 795492), (27912, 749550), (29075, 719568), (29982, 697800), (31560, 662910), (34200, 611738), (34890, 599640), (37872, 552425), (39450, 530328), (39976, 523350), (41868, 499700), (44194, 473400), (44973, 465200), (46520, 449730), (47340, 441940), (49970, 418680), (52335, 399760), (52600, 397746), (55824, 374775), (58150, 359784), (59175, 353552), (59964, 348900), (63120, 331455), (66291, 315600), (68400, 305869), (69780, 299820), (74955, 279120), (78900, 265164), (79952, 261675), (83736, 249850), (87225, 239856), (88388, 236700), (89946, 232600), (93040, 224865), (94680, 220970), (99940, 209340), (104670, 199880), (105200, 198873), (110485, 189360), (116300, 179892), (118350, 176776), (119928, 174450), (124925, 167472), (132582, 157800), (139560, 149910)]