205657880

素因数分解:

$2^3\times 5^1\times {\mathrm{797}}^1\times {\mathrm{6451}}^1$

素因数の和:7259

約数の個数: 32

約数和(自身を含む): 463382640

約数和(自身を除く): 257724760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 797, 1594, 3188, 3985, 6376, 6451, 7970, 12902, 15940, 25804, 31880, 32255, 51608, 64510, 129020, 258040, 5141447, 10282894, 20565788, 25707235, 41131576, 51414470, 102828940, 205657880]

約数ペア:

[(1, 205657880), (2, 102828940), (4, 51414470), (5, 41131576), (8, 25707235), (10, 20565788), (20, 10282894), (40, 5141447), (797, 258040), (1594, 129020), (3188, 64510), (3985, 51608), (6376, 32255), (6451, 31880), (7970, 25804), (12902, 15940)]