28181725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7883}}^1$

素因数の和:7917

約数の個数: 24

約数和(自身を含む): 41059872

約数和(自身を除く): 12878147

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 7883, 39415, 86713, 102479, 197075, 433565, 512395, 1127269, 2167825, 2561975, 5636345, 28181725]

約数ペア:

[(1, 28181725), (5, 5636345), (11, 2561975), (13, 2167825), (25, 1127269), (55, 512395), (65, 433565), (143, 197075), (275, 102479), (325, 86713), (715, 39415), (3575, 7883)]