20205055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7229}}^1$

素因数の和:7290

約数の個数: 16

約数和(自身を含む): 26722080

約数和(自身を除く): 6517025

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7229, 36145, 93977, 310847, 469885, 1554235, 4041011, 20205055]

約数ペア:

[(1, 20205055), (5, 4041011), (13, 1554235), (43, 469885), (65, 310847), (215, 93977), (559, 36145), (2795, 7229)]