18812375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^2$

素因数の和:212

約数の個数: 24

約数和(自身を含む): 24994320

約数和(自身を除く): 6181945

約数列:

[1, 5, 19, 25, 89, 95, 125, 445, 475, 1691, 2225, 2375, 7921, 8455, 11125, 39605, 42275, 150499, 198025, 211375, 752495, 990125, 3762475, 18812375]

約数ペア:

[(1, 18812375), (5, 3762475), (19, 990125), (25, 752495), (89, 211375), (95, 198025), (125, 150499), (445, 42275), (475, 39605), (1691, 11125), (2225, 8455), (2375, 7921)]