20399412

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^2$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 54462240

約数和(自身を除く): 34062828

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 44, 58, 66, 73, 87, 116, 132, 146, 174, 219, 292, 319, 348, 438, 638, 803, 876, 957, 1276, 1606, 1914, 2117, 2409, 3212, 3828, 4234, 4818, 5329, 6351, 8468, 9636, 10658, 12702, 15987, 21316, 23287, 25404, 31974, 46574, 58619, 63948, 69861, 93148, 117238, 139722, 154541, 175857, 234476, 279444, 309082, 351714, 463623, 618164, 703428, 927246, 1699951, 1854492, 3399902, 5099853, 6799804, 10199706, 20399412]

約数ペア:

[(1, 20399412), (2, 10199706), (3, 6799804), (4, 5099853), (6, 3399902), (11, 1854492), (12, 1699951), (22, 927246), (29, 703428), (33, 618164), (44, 463623), (58, 351714), (66, 309082), (73, 279444), (87, 234476), (116, 175857), (132, 154541), (146, 139722), (174, 117238), (219, 93148), (292, 69861), (319, 63948), (348, 58619), (438, 46574), (638, 31974), (803, 25404), (876, 23287), (957, 21316), (1276, 15987), (1606, 12702), (1914, 10658), (2117, 9636), (2409, 8468), (3212, 6351), (3828, 5329), (4234, 4818)]