57679280

素因数分解:

$2^4\times 5^1\times {\mathrm{720991}}^1$

素因数の和:721004

約数の個数: 20

約数和(自身を含む): 134104512

約数和(自身を除く): 76425232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 720991, 1441982, 2883964, 3604955, 5767928, 7209910, 11535856, 14419820, 28839640, 57679280]

約数ペア:

[(1, 57679280), (2, 28839640), (4, 14419820), (5, 11535856), (8, 7209910), (10, 5767928), (16, 3604955), (20, 2883964), (40, 1441982), (80, 720991)]