18121375

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{4999}}^1$

素因数の和:5043

約数の個数: 16

約数和(自身を含む): 23400000

約数和(自身を除く): 5278625

約数列:

[1, 5, 25, 29, 125, 145, 725, 3625, 4999, 24995, 124975, 144971, 624875, 724855, 3624275, 18121375]

約数ペア:

[(1, 18121375), (5, 3624275), (25, 724855), (29, 624875), (125, 144971), (145, 124975), (725, 24995), (3625, 4999)]