4218125

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:434

約数の個数: 20

約数和(自身を含む): 5595084

約数和(自身を除く): 1376959

約数列:

[1, 5, 17, 25, 85, 125, 397, 425, 625, 1985, 2125, 6749, 9925, 10625, 33745, 49625, 168725, 248125, 843625, 4218125]

約数ペア:

[(1, 4218125), (5, 843625), (17, 248125), (25, 168725), (85, 49625), (125, 33745), (397, 10625), (425, 9925), (625, 6749), (1985, 2125)]