20205518

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{5711}}^1$

素因数の和:5803

約数の個数: 16

約数和(自身を含む): 31872960

約数和(自身を除く): 11667442

約数列:

[1, 2, 29, 58, 61, 122, 1769, 3538, 5711, 11422, 165619, 331238, 348371, 696742, 10102759, 20205518]

約数ペア:

[(1, 20205518), (2, 10102759), (29, 696742), (58, 348371), (61, 331238), (122, 165619), (1769, 11422), (3538, 5711)]