12871265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 18057600

約数和(自身を除く): 5186335

約数列:

[1, 5, 11, 19, 55, 95, 109, 113, 209, 545, 565, 1045, 1199, 1243, 2071, 2147, 5995, 6215, 10355, 10735, 12317, 22781, 23617, 61585, 113905, 118085, 135487, 234023, 677435, 1170115, 2574253, 12871265]

約数ペア:

[(1, 12871265), (5, 2574253), (11, 1170115), (19, 677435), (55, 234023), (95, 135487), (109, 118085), (113, 113905), (209, 61585), (545, 23617), (565, 22781), (1045, 12317), (1199, 10735), (1243, 10355), (2071, 6215), (2147, 5995)]