81282175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{653}}^1$

素因数の和:1059

約数の個数: 24

約数和(自身を含む): 108993024

約数和(自身を除く): 27710849

約数列:

[1, 5, 13, 25, 65, 325, 383, 653, 1915, 3265, 4979, 8489, 9575, 16325, 24895, 42445, 124475, 212225, 250099, 1250495, 3251287, 6252475, 16256435, 81282175]

約数ペア:

[(1, 81282175), (5, 16256435), (13, 6252475), (25, 3251287), (65, 1250495), (325, 250099), (383, 212225), (653, 124475), (1915, 42445), (3265, 24895), (4979, 16325), (8489, 9575)]