628781680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{3571}}^1$

素因数の和:3686

約数の個数: 80

約数和(自身を含む): 1530759168

約数和(自身を除く): 901977488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 248, 284, 310, 355, 496, 568, 620, 710, 1136, 1240, 1420, 2201, 2480, 2840, 3571, 4402, 5680, 7142, 8804, 11005, 14284, 17608, 17855, 22010, 28568, 35216, 35710, 44020, 57136, 71420, 88040, 110701, 142840, 176080, 221402, 253541, 285680, 442804, 507082, 553505, 885608, 1014164, 1107010, 1267705, 1771216, 2028328, 2214020, 2535410, 4056656, 4428040, 5070820, 7859771, 8856080, 10141640, 15719542, 20283280, 31439084, 39298855, 62878168, 78597710, 125756336, 157195420, 314390840, 628781680]

約数ペア:

[(1, 628781680), (2, 314390840), (4, 157195420), (5, 125756336), (8, 78597710), (10, 62878168), (16, 39298855), (20, 31439084), (31, 20283280), (40, 15719542), (62, 10141640), (71, 8856080), (80, 7859771), (124, 5070820), (142, 4428040), (155, 4056656), (248, 2535410), (284, 2214020), (310, 2028328), (355, 1771216), (496, 1267705), (568, 1107010), (620, 1014164), (710, 885608), (1136, 553505), (1240, 507082), (1420, 442804), (2201, 285680), (2480, 253541), (2840, 221402), (3571, 176080), (4402, 142840), (5680, 110701), (7142, 88040), (8804, 71420), (11005, 57136), (14284, 44020), (17608, 35710), (17855, 35216), (22010, 28568)]