20040706

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 37756800

約数和(自身を除く): 17716094

約数列:

[1, 2, 7, 14, 19, 38, 47, 49, 94, 98, 133, 229, 266, 329, 458, 658, 893, 931, 1603, 1786, 1862, 2303, 3206, 4351, 4606, 6251, 8702, 10763, 11221, 12502, 21526, 22442, 30457, 43757, 60914, 75341, 87514, 150682, 204497, 213199, 408994, 426398, 527387, 1054774, 1431479, 2862958, 10020353, 20040706]

約数ペア:

[(1, 20040706), (2, 10020353), (7, 2862958), (14, 1431479), (19, 1054774), (38, 527387), (47, 426398), (49, 408994), (94, 213199), (98, 204497), (133, 150682), (229, 87514), (266, 75341), (329, 60914), (458, 43757), (658, 30457), (893, 22442), (931, 21526), (1603, 12502), (1786, 11221), (1862, 10763), (2303, 8702), (3206, 6251), (4351, 4606)]