87218885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{18899}}^1$

素因数の和:18988

約数の個数: 16

約数和(自身を含む): 114307200

約数和(自身を除く): 27088315

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 18899, 94495, 245687, 1228435, 1341829, 6709145, 17443777, 87218885]

約数ペア:

[(1, 87218885), (5, 17443777), (13, 6709145), (65, 1341829), (71, 1228435), (355, 245687), (923, 94495), (4615, 18899)]