1813340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1277}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 3864672

約数和(自身を除く): 2051332

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1277, 1420, 2554, 5108, 6385, 12770, 25540, 90667, 181334, 362668, 453335, 906670, 1813340]

約数ペア:

[(1, 1813340), (2, 906670), (4, 453335), (5, 362668), (10, 181334), (20, 90667), (71, 25540), (142, 12770), (284, 6385), (355, 5108), (710, 2554), (1277, 1420)]