20163947264

素因数分解:

$2^8\times {\mathrm{78765419}}^1$

素因数の和:78765435

約数の個数: 18

約数和(自身を含む): 40249129620

約数和(自身を除く): 20085182356

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78765419, 157530838, 315061676, 630123352, 1260246704, 2520493408, 5040986816, 10081973632, 20163947264]

約数ペア:

[(1, 20163947264), (2, 10081973632), (4, 5040986816), (8, 2520493408), (16, 1260246704), (32, 630123352), (64, 315061676), (128, 157530838), (256, 78765419)]