139565980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{240631}}^1$

素因数の和:240669

約数の個数: 24

約数和(自身を含む): 303196320

約数和(自身を除く): 163630340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 240631, 481262, 962524, 1203155, 2406310, 4812620, 6978299, 13956598, 27913196, 34891495, 69782990, 139565980]

約数ペア:

[(1, 139565980), (2, 69782990), (4, 34891495), (5, 27913196), (10, 13956598), (20, 6978299), (29, 4812620), (58, 2406310), (116, 1203155), (145, 962524), (290, 481262), (580, 240631)]