81210512

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{31139}}^1$

素因数の和:31310

約数の個数: 20

約数和(自身を含む): 158315760

約数和(自身を除く): 77105248

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 31139, 62278, 124556, 249112, 498224, 5075657, 10151314, 20302628, 40605256, 81210512]

約数ペア:

[(1, 81210512), (2, 40605256), (4, 20302628), (8, 10151314), (16, 5075657), (163, 498224), (326, 249112), (652, 124556), (1304, 62278), (2608, 31139)]