87164080

素因数分解:

$2^4\times 5^1\times {\mathrm{1089551}}^1$

素因数の和:1089564

約数の個数: 20

約数和(自身を含む): 202656672

約数和(自身を除く): 115492592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1089551, 2179102, 4358204, 5447755, 8716408, 10895510, 17432816, 21791020, 43582040, 87164080]

約数ペア:

[(1, 87164080), (2, 43582040), (4, 21791020), (5, 17432816), (8, 10895510), (10, 8716408), (16, 5447755), (20, 4358204), (40, 2179102), (80, 1089551)]