2019951875

素因数分解:

$5^4\times {\mathrm{43}}^1\times {\mathrm{75161}}^1$

素因数の和:75224

約数の個数: 20

約数和(自身を含む): 2582866968

約数和(自身を除く): 562915093

約数列:

[1, 5, 25, 43, 125, 215, 625, 1075, 5375, 26875, 75161, 375805, 1879025, 3231923, 9395125, 16159615, 46975625, 80798075, 403990375, 2019951875]

約数ペア:

[(1, 2019951875), (5, 403990375), (25, 80798075), (43, 46975625), (125, 16159615), (215, 9395125), (625, 3231923), (1075, 1879025), (5375, 375805), (26875, 75161)]