20172980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{34781}}^1$

素因数の和:34819

約数の個数: 24

約数和(自身を含む): 43825320

約数和(自身を除く): 23652340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 34781, 69562, 139124, 173905, 347810, 695620, 1008649, 2017298, 4034596, 5043245, 10086490, 20172980]

約数ペア:

[(1, 20172980), (2, 10086490), (4, 5043245), (5, 4034596), (10, 2017298), (20, 1008649), (29, 695620), (58, 347810), (116, 173905), (145, 139124), (290, 69562), (580, 34781)]