20405721062

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1\times {\mathrm{186869}}^1$

素因数の和:187711

約数の個数: 16

約数和(自身を含む): 31080218400

約数和(自身を除く): 10674497338

約数列:

[1, 2, 71, 142, 769, 1538, 54599, 109198, 186869, 373738, 13267699, 26535398, 143702261, 287404522, 10202860531, 20405721062]

約数ペア:

[(1, 20405721062), (2, 10202860531), (71, 287404522), (142, 143702261), (769, 26535398), (1538, 13267699), (54599, 373738), (109198, 186869)]