81427266

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1999}}^1$

素因数の和:2111

約数の個数: 48

約数和(自身を含む): 184704000

約数和(自身を除く): 103276734

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 73, 93, 146, 186, 219, 279, 438, 558, 657, 1314, 1999, 2263, 3998, 4526, 5997, 6789, 11994, 13578, 17991, 20367, 35982, 40734, 61969, 123938, 145927, 185907, 291854, 371814, 437781, 557721, 875562, 1115442, 1313343, 2626686, 4523737, 9047474, 13571211, 27142422, 40713633, 81427266]

約数ペア:

[(1, 81427266), (2, 40713633), (3, 27142422), (6, 13571211), (9, 9047474), (18, 4523737), (31, 2626686), (62, 1313343), (73, 1115442), (93, 875562), (146, 557721), (186, 437781), (219, 371814), (279, 291854), (438, 185907), (558, 145927), (657, 123938), (1314, 61969), (1999, 40734), (2263, 35982), (3998, 20367), (4526, 17991), (5997, 13578), (6789, 11994)]