20155975

素因数分解:

$5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{773}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 28792800

約数和(自身を除く): 8636825

約数列:

[1, 5, 7, 25, 35, 149, 175, 745, 773, 1043, 3725, 3865, 5215, 5411, 19325, 26075, 27055, 115177, 135275, 575885, 806239, 2879425, 4031195, 20155975]

約数ペア:

[(1, 20155975), (5, 4031195), (7, 2879425), (25, 806239), (35, 575885), (149, 135275), (175, 115177), (745, 27055), (773, 26075), (1043, 19325), (3725, 5411), (3865, 5215)]