28908108

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 75675600

約数和(自身を除く): 46767492

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 109, 139, 159, 212, 218, 278, 318, 327, 417, 436, 477, 556, 636, 654, 834, 954, 981, 1251, 1308, 1668, 1908, 1962, 2502, 3924, 5004, 5777, 7367, 11554, 14734, 15151, 17331, 22101, 23108, 29468, 30302, 34662, 44202, 45453, 51993, 60604, 66303, 69324, 88404, 90906, 103986, 132606, 136359, 181812, 207972, 265212, 272718, 545436, 803003, 1606006, 2409009, 3212012, 4818018, 7227027, 9636036, 14454054, 28908108]

約数ペア:

[(1, 28908108), (2, 14454054), (3, 9636036), (4, 7227027), (6, 4818018), (9, 3212012), (12, 2409009), (18, 1606006), (36, 803003), (53, 545436), (106, 272718), (109, 265212), (139, 207972), (159, 181812), (212, 136359), (218, 132606), (278, 103986), (318, 90906), (327, 88404), (417, 69324), (436, 66303), (477, 60604), (556, 51993), (636, 45453), (654, 44202), (834, 34662), (954, 30302), (981, 29468), (1251, 23108), (1308, 22101), (1668, 17331), (1908, 15151), (1962, 14734), (2502, 11554), (3924, 7367), (5004, 5777)]