139538480

素因数分解:

$2^4\times 5^1\times {\mathrm{1744231}}^1$

素因数の和:1744244

約数の個数: 20

約数和(自身を含む): 324427152

約数和(自身を除く): 184888672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1744231, 3488462, 6976924, 8721155, 13953848, 17442310, 27907696, 34884620, 69769240, 139538480]

約数ペア:

[(1, 139538480), (2, 69769240), (4, 34884620), (5, 27907696), (8, 17442310), (10, 13953848), (16, 8721155), (20, 6976924), (40, 3488462), (80, 1744231)]