65707640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{10463}}^1$

素因数の和:10631

約数の個数: 32

約数和(自身を含む): 148798080

約数和(自身を除く): 83090440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 10463, 20926, 41852, 52315, 83704, 104630, 209260, 418520, 1642691, 3285382, 6570764, 8213455, 13141528, 16426910, 32853820, 65707640]

約数ペア:

[(1, 65707640), (2, 32853820), (4, 16426910), (5, 13141528), (8, 8213455), (10, 6570764), (20, 3285382), (40, 1642691), (157, 418520), (314, 209260), (628, 104630), (785, 83704), (1256, 52315), (1570, 41852), (3140, 20926), (6280, 10463)]