68709860

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{23057}}^1$

素因数の和:23215

約数の個数: 24

約数和(自身を含む): 145265400

約数和(自身を除く): 76555540

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 23057, 46114, 92228, 115285, 230570, 461140, 3435493, 6870986, 13741972, 17177465, 34354930, 68709860]

約数ペア:

[(1, 68709860), (2, 34354930), (4, 17177465), (5, 13741972), (10, 6870986), (20, 3435493), (149, 461140), (298, 230570), (596, 115285), (745, 92228), (1490, 46114), (2980, 23057)]