80864740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 195084288

約数和(自身を除く): 114219548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 71, 110, 124, 142, 155, 167, 220, 284, 310, 334, 341, 355, 620, 668, 682, 710, 781, 835, 1364, 1420, 1562, 1670, 1705, 1837, 2201, 3124, 3340, 3410, 3674, 3905, 4402, 5177, 6820, 7348, 7810, 8804, 9185, 10354, 11005, 11857, 15620, 18370, 20708, 22010, 23714, 24211, 25885, 36740, 44020, 47428, 48422, 51770, 56947, 59285, 96844, 103540, 113894, 118570, 121055, 130427, 227788, 237140, 242110, 260854, 284735, 367567, 484220, 521708, 569470, 652135, 735134, 1138940, 1304270, 1470268, 1837835, 2608540, 3675670, 4043237, 7351340, 8086474, 16172948, 20216185, 40432370, 80864740]

約数ペア:

[(1, 80864740), (2, 40432370), (4, 20216185), (5, 16172948), (10, 8086474), (11, 7351340), (20, 4043237), (22, 3675670), (31, 2608540), (44, 1837835), (55, 1470268), (62, 1304270), (71, 1138940), (110, 735134), (124, 652135), (142, 569470), (155, 521708), (167, 484220), (220, 367567), (284, 284735), (310, 260854), (334, 242110), (341, 237140), (355, 227788), (620, 130427), (668, 121055), (682, 118570), (710, 113894), (781, 103540), (835, 96844), (1364, 59285), (1420, 56947), (1562, 51770), (1670, 48422), (1705, 47428), (1837, 44020), (2201, 36740), (3124, 25885), (3340, 24211), (3410, 23714), (3674, 22010), (3905, 20708), (4402, 18370), (5177, 15620), (6820, 11857), (7348, 11005), (7810, 10354), (8804, 9185)]