20215255

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3181}}^1$

素因数の和:3258

約数の個数: 16

約数和(自身を含む): 25659648

約数和(自身を除く): 5444393

約数列:

[1, 5, 31, 41, 155, 205, 1271, 3181, 6355, 15905, 98611, 130421, 493055, 652105, 4043051, 20215255]

約数ペア:

[(1, 20215255), (5, 4043051), (31, 652105), (41, 493055), (155, 130421), (205, 98611), (1271, 15905), (3181, 6355)]