20288980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{34981}}^1$

素因数の和:35019

約数の個数: 24

約数和(自身を含む): 44077320

約数和(自身を除く): 23788340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 34981, 69962, 139924, 174905, 349810, 699620, 1014449, 2028898, 4057796, 5072245, 10144490, 20288980]

約数ペア:

[(1, 20288980), (2, 10144490), (4, 5072245), (5, 4057796), (10, 2028898), (20, 1014449), (29, 699620), (58, 349810), (116, 174905), (145, 139924), (290, 69962), (580, 34981)]