61920020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{99871}}^1$

素因数の和:99911

約数の個数: 24

約数和(自身を含む): 134227968

約数和(自身を除く): 72307948

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 99871, 199742, 399484, 499355, 998710, 1997420, 3096001, 6192002, 12384004, 15480005, 30960010, 61920020]

約数ペア:

[(1, 61920020), (2, 30960010), (4, 15480005), (5, 12384004), (10, 6192002), (20, 3096001), (31, 1997420), (62, 998710), (124, 499355), (155, 399484), (310, 199742), (620, 99871)]