18225125

素因数分解:

$5^3\times {\mathrm{211}}^1\times {\mathrm{691}}^1$

素因数の和:917

約数の個数: 16

約数和(自身を含む): 22885824

約数和(自身を除く): 4660699

約数列:

[1, 5, 25, 125, 211, 691, 1055, 3455, 5275, 17275, 26375, 86375, 145801, 729005, 3645025, 18225125]

約数ペア:

[(1, 18225125), (5, 3645025), (25, 729005), (125, 145801), (211, 86375), (691, 26375), (1055, 17275), (3455, 5275)]