393125

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:74

約数の個数: 20

約数和(自身を含む): 534204

約数和(自身を除く): 141079

約数列:

[1, 5, 17, 25, 37, 85, 125, 185, 425, 625, 629, 925, 2125, 3145, 4625, 10625, 15725, 23125, 78625, 393125]

約数ペア:

[(1, 393125), (5, 78625), (17, 23125), (25, 15725), (37, 10625), (85, 4625), (125, 3145), (185, 2125), (425, 925), (625, 629)]