20189212825

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{191231}}^1$

素因数の和:191385

約数の個数: 24

約数和(自身を含む): 25894342656

約数和(自身を除く): 5705129831

約数列:

[1, 5, 25, 41, 103, 205, 515, 1025, 2575, 4223, 21115, 105575, 191231, 956155, 4780775, 7840471, 19696793, 39202355, 98483965, 196011775, 492419825, 807568513, 4037842565, 20189212825]

約数ペア:

[(1, 20189212825), (5, 4037842565), (25, 807568513), (41, 492419825), (103, 196011775), (205, 98483965), (515, 39202355), (1025, 19696793), (2575, 7840471), (4223, 4780775), (21115, 956155), (105575, 191231)]