25122640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4423}}^1$

素因数の和:4507

約数の個数: 40

約数和(自身を含む): 59246208

約数和(自身を除く): 34123568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 4423, 5680, 8846, 17692, 22115, 35384, 44230, 70768, 88460, 176920, 314033, 353840, 628066, 1256132, 1570165, 2512264, 3140330, 5024528, 6280660, 12561320, 25122640]

約数ペア:

[(1, 25122640), (2, 12561320), (4, 6280660), (5, 5024528), (8, 3140330), (10, 2512264), (16, 1570165), (20, 1256132), (40, 628066), (71, 353840), (80, 314033), (142, 176920), (284, 88460), (355, 70768), (568, 44230), (710, 35384), (1136, 22115), (1420, 17692), (2840, 8846), (4423, 5680)]