1990641712

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{1141423}}^1$

素因数の和:1141540

約数の個数: 20

約数和(自身を含む): 3892255840

約数和(自身を除く): 1901614128

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 1141423, 2282846, 4565692, 9131384, 18262768, 124415107, 248830214, 497660428, 995320856, 1990641712]

約数ペア:

[(1, 1990641712), (2, 995320856), (4, 497660428), (8, 248830214), (16, 124415107), (109, 18262768), (218, 9131384), (436, 4565692), (872, 2282846), (1744, 1141423)]