7889375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{971}}^1$

素因数の和:1004

約数の個数: 20

約数和(自身を含む): 10627848

約数和(自身を除く): 2738473

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 971, 1625, 4855, 8125, 12623, 24275, 63115, 121375, 315575, 606875, 1577875, 7889375]

約数ペア:

[(1, 7889375), (5, 1577875), (13, 606875), (25, 315575), (65, 121375), (125, 63115), (325, 24275), (625, 12623), (971, 8125), (1625, 4855)]