169407640

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{30469}}^1$

素因数の和:30619

約数の個数: 32

約数和(自身を含む): 383922000

約数和(自身を除く): 214514360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 30469, 60938, 121876, 152345, 243752, 304690, 609380, 1218760, 4235191, 8470382, 16940764, 21175955, 33881528, 42351910, 84703820, 169407640]

約数ペア:

[(1, 169407640), (2, 84703820), (4, 42351910), (5, 33881528), (8, 21175955), (10, 16940764), (20, 8470382), (40, 4235191), (139, 1218760), (278, 609380), (556, 304690), (695, 243752), (1112, 152345), (1390, 121876), (2780, 60938), (5560, 30469)]