87660920

素因数分解:

$2^3\times 5^1\times {\mathrm{2191523}}^1$

素因数の和:2191534

約数の個数: 16

約数和(自身を含む): 197237160

約数和(自身を除く): 109576240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2191523, 4383046, 8766092, 10957615, 17532184, 21915230, 43830460, 87660920]

約数ペア:

[(1, 87660920), (2, 43830460), (4, 21915230), (5, 17532184), (8, 10957615), (10, 8766092), (20, 4383046), (40, 2191523)]