68984140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{84127}}^1$

素因数の和:84177

約数の個数: 24

約数和(自身を含む): 148401792

約数和(自身を除く): 79417652

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 84127, 168254, 336508, 420635, 841270, 1682540, 3449207, 6898414, 13796828, 17246035, 34492070, 68984140]

約数ペア:

[(1, 68984140), (2, 34492070), (4, 17246035), (5, 13796828), (10, 6898414), (20, 3449207), (41, 1682540), (82, 841270), (164, 420635), (205, 336508), (410, 168254), (820, 84127)]