131743240

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{6763}}^1$

素因数の和:7261

約数の個数: 32

約数和(自身を含む): 297074880

約数和(自身を除く): 165331640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 6763, 9740, 13526, 19480, 27052, 33815, 54104, 67630, 135260, 270520, 3293581, 6587162, 13174324, 16467905, 26348648, 32935810, 65871620, 131743240]

約数ペア:

[(1, 131743240), (2, 65871620), (4, 32935810), (5, 26348648), (8, 16467905), (10, 13174324), (20, 6587162), (40, 3293581), (487, 270520), (974, 135260), (1948, 67630), (2435, 54104), (3896, 33815), (4870, 27052), (6763, 19480), (9740, 13526)]