87891245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71167}}^1$

素因数の和:71204

約数の個数: 16

約数和(自身を含む): 119562240

約数和(自身を除く): 31670995

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 71167, 355835, 925171, 1352173, 4625855, 6760865, 17578249, 87891245]

約数ペア:

[(1, 87891245), (5, 17578249), (13, 6760865), (19, 4625855), (65, 1352173), (95, 925171), (247, 355835), (1235, 71167)]