9992540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 22063104

約数和(自身を除く): 12070564

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 227, 284, 310, 355, 454, 620, 710, 908, 1135, 1420, 2201, 2270, 4402, 4540, 7037, 8804, 11005, 14074, 16117, 22010, 28148, 32234, 35185, 44020, 64468, 70370, 80585, 140740, 161170, 322340, 499627, 999254, 1998508, 2498135, 4996270, 9992540]

約数ペア:

[(1, 9992540), (2, 4996270), (4, 2498135), (5, 1998508), (10, 999254), (20, 499627), (31, 322340), (62, 161170), (71, 140740), (124, 80585), (142, 70370), (155, 64468), (227, 44020), (284, 35185), (310, 32234), (355, 28148), (454, 22010), (620, 16117), (710, 14074), (908, 11005), (1135, 8804), (1420, 7037), (2201, 4540), (2270, 4402)]