64709080

素因数分解:

$2^3\times 5^1\times {\mathrm{1617727}}^1$

素因数の和:1617738

約数の個数: 16

約数和(自身を含む): 145595520

約数和(自身を除く): 80886440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1617727, 3235454, 6470908, 8088635, 12941816, 16177270, 32354540, 64709080]

約数ペア:

[(1, 64709080), (2, 32354540), (4, 16177270), (5, 12941816), (8, 8088635), (10, 6470908), (20, 3235454), (40, 1617727)]