81890618

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1\times {\mathrm{2789}}^1$

素因数の和:3121

約数の個数: 16

約数和(自身を含む): 125650440

約数和(自身を除く): 43759822

約数列:

[1, 2, 53, 106, 277, 554, 2789, 5578, 14681, 29362, 147817, 295634, 772553, 1545106, 40945309, 81890618]

約数ペア:

[(1, 81890618), (2, 40945309), (53, 1545106), (106, 772553), (277, 295634), (554, 147817), (2789, 29362), (5578, 14681)]