20145142945

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1\times {\mathrm{51241}}^1$

素因数の和:52596

約数の個数: 16

約数和(自身を含む): 24590010960

約数和(自身を除く): 4444868015

約数列:

[1, 5, 61, 305, 1289, 6445, 51241, 78629, 256205, 393145, 3125701, 15628505, 66049649, 330248245, 4029028589, 20145142945]

約数ペア:

[(1, 20145142945), (5, 4029028589), (61, 330248245), (305, 66049649), (1289, 15628505), (6445, 3125701), (51241, 393145), (78629, 256205)]