20100925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 27109376

約数和(自身を除く): 7008451

約数列:

[1, 5, 13, 25, 65, 127, 325, 487, 635, 1651, 2435, 3175, 6331, 8255, 12175, 31655, 41275, 61849, 158275, 309245, 804037, 1546225, 4020185, 20100925]

約数ペア:

[(1, 20100925), (5, 4020185), (13, 1546225), (25, 804037), (65, 309245), (127, 158275), (325, 61849), (487, 41275), (635, 31655), (1651, 12175), (2435, 8255), (3175, 6331)]