2017705520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{197}}^1\times {\mathrm{443}}^1$

素因数の和:687

約数の個数: 120

約数和(自身を含む): 5019951024

約数和(自身を除く): 3002245504

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 197, 272, 289, 340, 394, 443, 578, 680, 788, 886, 985, 1156, 1360, 1445, 1576, 1772, 1970, 2215, 2312, 2890, 3152, 3349, 3544, 3940, 4430, 4624, 5780, 6698, 7088, 7531, 7880, 8860, 11560, 13396, 15062, 15760, 16745, 17720, 23120, 26792, 30124, 33490, 35440, 37655, 53584, 56933, 60248, 66980, 75310, 87271, 113866, 120496, 128027, 133960, 150620, 174542, 227732, 256054, 267920, 284665, 301240, 349084, 436355, 455464, 512108, 569330, 602480, 640135, 698168, 872710, 910928, 1024216, 1138660, 1280270, 1396336, 1483607, 1745420, 2048432, 2277320, 2560540, 2967214, 3490840, 4554640, 5121080, 5934428, 6981680, 7418035, 10242160, 11868856, 14836070, 23737712, 25221319, 29672140, 50442638, 59344280, 100885276, 118688560, 126106595, 201770552, 252213190, 403541104, 504426380, 1008852760, 2017705520]

約数ペア:

[(1, 2017705520), (2, 1008852760), (4, 504426380), (5, 403541104), (8, 252213190), (10, 201770552), (16, 126106595), (17, 118688560), (20, 100885276), (34, 59344280), (40, 50442638), (68, 29672140), (80, 25221319), (85, 23737712), (136, 14836070), (170, 11868856), (197, 10242160), (272, 7418035), (289, 6981680), (340, 5934428), (394, 5121080), (443, 4554640), (578, 3490840), (680, 2967214), (788, 2560540), (886, 2277320), (985, 2048432), (1156, 1745420), (1360, 1483607), (1445, 1396336), (1576, 1280270), (1772, 1138660), (1970, 1024216), (2215, 910928), (2312, 872710), (2890, 698168), (3152, 640135), (3349, 602480), (3544, 569330), (3940, 512108), (4430, 455464), (4624, 436355), (5780, 349084), (6698, 301240), (7088, 284665), (7531, 267920), (7880, 256054), (8860, 227732), (11560, 174542), (13396, 150620), (15062, 133960), (15760, 128027), (16745, 120496), (17720, 113866), (23120, 87271), (26792, 75310), (30124, 66980), (33490, 60248), (35440, 56933), (37655, 53584)]