1639237025

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{677}}^1\times {\mathrm{4211}}^1$

素因数の和:4921

約数の個数: 24

約数和(自身を含む): 2124667584

約数和(自身を除く): 485430559

約数列:

[1, 5, 23, 25, 115, 575, 677, 3385, 4211, 15571, 16925, 21055, 77855, 96853, 105275, 389275, 484265, 2421325, 2850847, 14254235, 65569481, 71271175, 327847405, 1639237025]

約数ペア:

[(1, 1639237025), (5, 327847405), (23, 71271175), (25, 65569481), (115, 14254235), (575, 2850847), (677, 2421325), (3385, 484265), (4211, 389275), (15571, 105275), (16925, 96853), (21055, 77855)]