638332225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{613}}^1\times {\mathrm{1811}}^1$

素因数の和:2457

約数の個数: 24

約数和(自身を含む): 827750592

約数和(自身を除く): 189418367

約数列:

[1, 5, 23, 25, 115, 575, 613, 1811, 3065, 9055, 14099, 15325, 41653, 45275, 70495, 208265, 352475, 1041325, 1110143, 5550715, 25533289, 27753575, 127666445, 638332225]

約数ペア:

[(1, 638332225), (5, 127666445), (23, 27753575), (25, 25533289), (115, 5550715), (575, 1110143), (613, 1041325), (1811, 352475), (3065, 208265), (9055, 70495), (14099, 45275), (15325, 41653)]