81230210

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{58439}}^1$

素因数の和:58585

約数の個数: 16

約数和(自身を含む): 147268800

約数和(自身を除く): 66038590

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 58439, 116878, 292195, 584390, 8123021, 16246042, 40615105, 81230210]

約数ペア:

[(1, 81230210), (2, 40615105), (5, 16246042), (10, 8123021), (139, 584390), (278, 292195), (695, 116878), (1390, 58439)]