811280

素因数分解:

$2^4\times 5^1\times {\mathrm{10141}}^1$

素因数の和:10154

約数の個数: 20

約数和(自身を含む): 1886412

約数和(自身を除く): 1075132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10141, 20282, 40564, 50705, 81128, 101410, 162256, 202820, 405640, 811280]

約数ペア:

[(1, 811280), (2, 405640), (4, 202820), (5, 162256), (8, 101410), (10, 81128), (16, 50705), (20, 40564), (40, 20282), (80, 10141)]