1391740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9941}}^1$

素因数の和:9957

約数の個数: 24

約数和(自身を含む): 3340512

約数和(自身を除く): 1948772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9941, 19882, 39764, 49705, 69587, 99410, 139174, 198820, 278348, 347935, 695870, 1391740]

約数ペア:

[(1, 1391740), (2, 695870), (4, 347935), (5, 278348), (7, 198820), (10, 139174), (14, 99410), (20, 69587), (28, 49705), (35, 39764), (70, 19882), (140, 9941)]