20013625

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{5521}}^1$

素因数の和:5565

約数の個数: 16

約数和(自身を含む): 25842960

約数和(自身を除く): 5829335

約数列:

[1, 5, 25, 29, 125, 145, 725, 3625, 5521, 27605, 138025, 160109, 690125, 800545, 4002725, 20013625]

約数ペア:

[(1, 20013625), (5, 4002725), (25, 800545), (29, 690125), (125, 160109), (145, 138025), (725, 27605), (3625, 5521)]