17639375

素因数分解:

$5^4\times {\mathrm{13}}^2\times {\mathrm{167}}^1$

素因数の和:213

約数の個数: 30

約数和(自身を含む): 24011064

約数和(自身を除く): 6371689

約数列:

[1, 5, 13, 25, 65, 125, 167, 169, 325, 625, 835, 845, 1625, 2171, 4175, 4225, 8125, 10855, 20875, 21125, 28223, 54275, 104375, 105625, 141115, 271375, 705575, 1356875, 3527875, 17639375]

約数ペア:

[(1, 17639375), (5, 3527875), (13, 1356875), (25, 705575), (65, 271375), (125, 141115), (167, 105625), (169, 104375), (325, 54275), (625, 28223), (835, 21125), (845, 20875), (1625, 10855), (2171, 8125), (4175, 4225)]