1284142720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 256

約数和(自身を含む): 3691192320

約数和(自身を除く): 2407049600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 61, 64, 70, 74, 80, 112, 122, 127, 128, 140, 148, 160, 185, 224, 244, 254, 259, 280, 296, 305, 320, 370, 427, 448, 488, 508, 518, 560, 592, 610, 635, 640, 740, 854, 889, 896, 976, 1016, 1036, 1120, 1184, 1220, 1270, 1295, 1480, 1708, 1778, 1952, 2032, 2072, 2135, 2240, 2257, 2368, 2440, 2540, 2590, 2960, 3416, 3556, 3904, 4064, 4144, 4270, 4445, 4480, 4514, 4699, 4736, 4880, 5080, 5180, 5920, 6832, 7112, 7747, 7808, 8128, 8288, 8540, 8890, 9028, 9398, 9760, 10160, 10360, 11285, 11840, 13664, 14224, 15494, 15799, 16256, 16576, 17080, 17780, 18056, 18796, 19520, 20320, 20720, 22570, 23495, 23680, 27328, 28448, 30988, 31598, 32893, 33152, 34160, 35560, 36112, 37592, 38735, 39040, 40640, 41440, 45140, 46990, 54229, 54656, 56896, 61976, 63196, 65786, 68320, 71120, 72224, 75184, 77470, 78995, 81280, 82880, 90280, 93980, 108458, 113792, 123952, 126392, 131572, 136640, 142240, 144448, 150368, 154940, 157990, 164465, 165760, 180560, 187960, 216916, 247904, 252784, 263144, 271145, 273280, 284480, 286639, 288896, 300736, 309880, 315980, 328930, 361120, 375920, 433832, 495808, 505568, 526288, 542290, 568960, 573278, 601472, 619760, 631960, 657860, 722240, 751840, 867664, 991616, 1011136, 1052576, 1084580, 1146556, 1239520, 1263920, 1315720, 1433195, 1444480, 1503680, 1735328, 2006473, 2022272, 2105152, 2169160, 2293112, 2479040, 2527840, 2631440, 2866390, 3007360, 3470656, 4012946, 4210304, 4338320, 4586224, 4958080, 5055680, 5262880, 5732780, 6941312, 8025892, 8676640, 9172448, 10032365, 10111360, 10525760, 11465560, 16051784, 17353280, 18344896, 20064730, 21051520, 22931120, 32103568, 34706560, 36689792, 40129460, 45862240, 64207136, 80258920, 91724480, 128414272, 160517840, 183448960, 256828544, 321035680, 642071360, 1284142720]

約数ペア:

[(1, 1284142720), (2, 642071360), (4, 321035680), (5, 256828544), (7, 183448960), (8, 160517840), (10, 128414272), (14, 91724480), (16, 80258920), (20, 64207136), (28, 45862240), (32, 40129460), (35, 36689792), (37, 34706560), (40, 32103568), (56, 22931120), (61, 21051520), (64, 20064730), (70, 18344896), (74, 17353280), (80, 16051784), (112, 11465560), (122, 10525760), (127, 10111360), (128, 10032365), (140, 9172448), (148, 8676640), (160, 8025892), (185, 6941312), (224, 5732780), (244, 5262880), (254, 5055680), (259, 4958080), (280, 4586224), (296, 4338320), (305, 4210304), (320, 4012946), (370, 3470656), (427, 3007360), (448, 2866390), (488, 2631440), (508, 2527840), (518, 2479040), (560, 2293112), (592, 2169160), (610, 2105152), (635, 2022272), (640, 2006473), (740, 1735328), (854, 1503680), (889, 1444480), (896, 1433195), (976, 1315720), (1016, 1263920), (1036, 1239520), (1120, 1146556), (1184, 1084580), (1220, 1052576), (1270, 1011136), (1295, 991616), (1480, 867664), (1708, 751840), (1778, 722240), (1952, 657860), (2032, 631960), (2072, 619760), (2135, 601472), (2240, 573278), (2257, 568960), (2368, 542290), (2440, 526288), (2540, 505568), (2590, 495808), (2960, 433832), (3416, 375920), (3556, 361120), (3904, 328930), (4064, 315980), (4144, 309880), (4270, 300736), (4445, 288896), (4480, 286639), (4514, 284480), (4699, 273280), (4736, 271145), (4880, 263144), (5080, 252784), (5180, 247904), (5920, 216916), (6832, 187960), (7112, 180560), (7747, 165760), (7808, 164465), (8128, 157990), (8288, 154940), (8540, 150368), (8890, 144448), (9028, 142240), (9398, 136640), (9760, 131572), (10160, 126392), (10360, 123952), (11285, 113792), (11840, 108458), (13664, 93980), (14224, 90280), (15494, 82880), (15799, 81280), (16256, 78995), (16576, 77470), (17080, 75184), (17780, 72224), (18056, 71120), (18796, 68320), (19520, 65786), (20320, 63196), (20720, 61976), (22570, 56896), (23495, 54656), (23680, 54229), (27328, 46990), (28448, 45140), (30988, 41440), (31598, 40640), (32893, 39040), (33152, 38735), (34160, 37592), (35560, 36112)]