40637680

素因数分解:

$2^4\times 5^1\times {\mathrm{507971}}^1$

素因数の和:507984

約数の個数: 20

約数和(自身を含む): 94482792

約数和(自身を除く): 53845112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 507971, 1015942, 2031884, 2539855, 4063768, 5079710, 8127536, 10159420, 20318840, 40637680]

約数ペア:

[(1, 40637680), (2, 20318840), (4, 10159420), (5, 8127536), (8, 5079710), (10, 4063768), (16, 2539855), (20, 2031884), (40, 1015942), (80, 507971)]