89877740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2549}}^1$

素因数の和:2642

約数の個数: 48

約数和(自身を含む): 197920800

約数和(自身を除く): 108043060

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 2549, 3526, 5098, 7052, 8815, 10196, 12745, 17630, 25490, 35260, 50980, 104509, 109607, 209018, 219214, 418036, 438428, 522545, 548035, 1045090, 1096070, 2090180, 2192140, 4493887, 8987774, 17975548, 22469435, 44938870, 89877740]

約数ペア:

[(1, 89877740), (2, 44938870), (4, 22469435), (5, 17975548), (10, 8987774), (20, 4493887), (41, 2192140), (43, 2090180), (82, 1096070), (86, 1045090), (164, 548035), (172, 522545), (205, 438428), (215, 418036), (410, 219214), (430, 209018), (820, 109607), (860, 104509), (1763, 50980), (2549, 35260), (3526, 25490), (5098, 17630), (7052, 12745), (8815, 10196)]