1811620

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 3830400

約数和(自身を除く): 2018780

約数列:

[1, 2, 4, 5, 10, 20, 239, 379, 478, 758, 956, 1195, 1516, 1895, 2390, 3790, 4780, 7580, 90581, 181162, 362324, 452905, 905810, 1811620]

約数ペア:

[(1, 1811620), (2, 905810), (4, 452905), (5, 362324), (10, 181162), (20, 90581), (239, 7580), (379, 4780), (478, 3790), (758, 2390), (956, 1895), (1195, 1516)]