20695240

素因数分解:

$2^3\times 5^1\times {\mathrm{517381}}^1$

素因数の和:517392

約数の個数: 16

約数和(自身を含む): 46564380

約数和(自身を除く): 25869140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 517381, 1034762, 2069524, 2586905, 4139048, 5173810, 10347620, 20695240]

約数ペア:

[(1, 20695240), (2, 10347620), (4, 5173810), (5, 4139048), (8, 2586905), (10, 2069524), (20, 1034762), (40, 517381)]