18505625

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{1021}}^1$

素因数の和:1070

約数の個数: 20

約数和(自身を含む): 23945460

約数和(自身を除く): 5439835

約数列:

[1, 5, 25, 29, 125, 145, 625, 725, 1021, 3625, 5105, 18125, 25525, 29609, 127625, 148045, 638125, 740225, 3701125, 18505625]

約数ペア:

[(1, 18505625), (5, 3701125), (25, 740225), (29, 638125), (125, 148045), (145, 127625), (625, 29609), (725, 25525), (1021, 18125), (3625, 5105)]