64678870

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{91097}}^1$

素因数の和:91175

約数の個数: 16

約数和(自身を含む): 118063008

約数和(自身を除く): 53384138

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 91097, 182194, 455485, 910970, 6467887, 12935774, 32339435, 64678870]

約数ペア:

[(1, 64678870), (2, 32339435), (5, 12935774), (10, 6467887), (71, 910970), (142, 455485), (355, 182194), (710, 91097)]