1820625

素因数分解:

$3^1\times 5^4\times {\mathrm{971}}^1$

素因数の和:994

約数の個数: 20

約数和(自身を含む): 3036528

約数和(自身を除く): 1215903

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 971, 1875, 2913, 4855, 14565, 24275, 72825, 121375, 364125, 606875, 1820625]

約数ペア:

[(1, 1820625), (3, 606875), (5, 364125), (15, 121375), (25, 72825), (75, 24275), (125, 14565), (375, 4855), (625, 2913), (971, 1875)]