987446720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:124

約数の個数: 252

約数和(自身を含む): 2769397560

約数和(自身を除く): 1781950840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 32, 38, 40, 52, 62, 64, 65, 76, 80, 95, 104, 124, 130, 152, 155, 160, 169, 190, 208, 247, 248, 260, 304, 310, 320, 338, 380, 403, 416, 494, 496, 520, 589, 608, 620, 676, 760, 806, 832, 845, 961, 988, 992, 1040, 1178, 1216, 1235, 1240, 1352, 1520, 1612, 1690, 1922, 1976, 1984, 2015, 2080, 2356, 2470, 2480, 2704, 2945, 3040, 3211, 3224, 3380, 3844, 3952, 4030, 4160, 4712, 4805, 4940, 4960, 5239, 5408, 5890, 6080, 6422, 6448, 6760, 7657, 7688, 7904, 8060, 9424, 9610, 9880, 9920, 10478, 10816, 11780, 12493, 12844, 12896, 13520, 15314, 15376, 15808, 16055, 16120, 18259, 18848, 19220, 19760, 20956, 23560, 24986, 25688, 25792, 26195, 27040, 30628, 30752, 32110, 32240, 36518, 37696, 38285, 38440, 39520, 41912, 47120, 49972, 51376, 52390, 54080, 61256, 61504, 62465, 64220, 64480, 73036, 76570, 76880, 79040, 83824, 91295, 94240, 99541, 99944, 102752, 104780, 122512, 124930, 128440, 128960, 146072, 153140, 153760, 162409, 167648, 182590, 188480, 199082, 199888, 205504, 209560, 237367, 245024, 249860, 256880, 292144, 306280, 307520, 324818, 335296, 365180, 398164, 399776, 419120, 474734, 490048, 497705, 499720, 513760, 584288, 612560, 649636, 730360, 796328, 799552, 812045, 838240, 949468, 995410, 999440, 1027520, 1168576, 1186835, 1225120, 1299272, 1460720, 1592656, 1624090, 1676480, 1898936, 1990820, 1998880, 2373670, 2450240, 2598544, 2921440, 3085771, 3185312, 3248180, 3797872, 3981640, 3997760, 4747340, 5197088, 5842880, 6171542, 6370624, 6496360, 7595744, 7963280, 9494680, 10394176, 12343084, 12992720, 15191488, 15428855, 15926560, 18989360, 24686168, 25985440, 30857710, 31853120, 37978720, 49372336, 51970880, 61715420, 75957440, 98744672, 123430840, 197489344, 246861680, 493723360, 987446720]

約数ペア:

[(1, 987446720), (2, 493723360), (4, 246861680), (5, 197489344), (8, 123430840), (10, 98744672), (13, 75957440), (16, 61715420), (19, 51970880), (20, 49372336), (26, 37978720), (31, 31853120), (32, 30857710), (38, 25985440), (40, 24686168), (52, 18989360), (62, 15926560), (64, 15428855), (65, 15191488), (76, 12992720), (80, 12343084), (95, 10394176), (104, 9494680), (124, 7963280), (130, 7595744), (152, 6496360), (155, 6370624), (160, 6171542), (169, 5842880), (190, 5197088), (208, 4747340), (247, 3997760), (248, 3981640), (260, 3797872), (304, 3248180), (310, 3185312), (320, 3085771), (338, 2921440), (380, 2598544), (403, 2450240), (416, 2373670), (494, 1998880), (496, 1990820), (520, 1898936), (589, 1676480), (608, 1624090), (620, 1592656), (676, 1460720), (760, 1299272), (806, 1225120), (832, 1186835), (845, 1168576), (961, 1027520), (988, 999440), (992, 995410), (1040, 949468), (1178, 838240), (1216, 812045), (1235, 799552), (1240, 796328), (1352, 730360), (1520, 649636), (1612, 612560), (1690, 584288), (1922, 513760), (1976, 499720), (1984, 497705), (2015, 490048), (2080, 474734), (2356, 419120), (2470, 399776), (2480, 398164), (2704, 365180), (2945, 335296), (3040, 324818), (3211, 307520), (3224, 306280), (3380, 292144), (3844, 256880), (3952, 249860), (4030, 245024), (4160, 237367), (4712, 209560), (4805, 205504), (4940, 199888), (4960, 199082), (5239, 188480), (5408, 182590), (5890, 167648), (6080, 162409), (6422, 153760), (6448, 153140), (6760, 146072), (7657, 128960), (7688, 128440), (7904, 124930), (8060, 122512), (9424, 104780), (9610, 102752), (9880, 99944), (9920, 99541), (10478, 94240), (10816, 91295), (11780, 83824), (12493, 79040), (12844, 76880), (12896, 76570), (13520, 73036), (15314, 64480), (15376, 64220), (15808, 62465), (16055, 61504), (16120, 61256), (18259, 54080), (18848, 52390), (19220, 51376), (19760, 49972), (20956, 47120), (23560, 41912), (24986, 39520), (25688, 38440), (25792, 38285), (26195, 37696), (27040, 36518), (30628, 32240), (30752, 32110)]