139780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 304920

約数和(自身を除く): 165140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 241, 290, 482, 580, 964, 1205, 2410, 4820, 6989, 13978, 27956, 34945, 69890, 139780]

約数ペア:

[(1, 139780), (2, 69890), (4, 34945), (5, 27956), (10, 13978), (20, 6989), (29, 4820), (58, 2410), (116, 1205), (145, 964), (241, 580), (290, 482)]