20405325

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{3727}}^1$

素因数の和:3813

約数の個数: 24

約数和(自身を含む): 34208128

約数和(自身を除く): 13802803

約数列:

[1, 3, 5, 15, 25, 73, 75, 219, 365, 1095, 1825, 3727, 5475, 11181, 18635, 55905, 93175, 272071, 279525, 816213, 1360355, 4081065, 6801775, 20405325]

約数ペア:

[(1, 20405325), (3, 6801775), (5, 4081065), (15, 1360355), (25, 816213), (73, 279525), (75, 272071), (219, 93175), (365, 55905), (1095, 18635), (1825, 11181), (3727, 5475)]