81675748

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{881}}^1$

素因数の和:953

約数の個数: 72

約数和(自身を含む): 185812704

約数和(自身を除く): 104136956

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 49, 77, 86, 98, 154, 172, 196, 301, 308, 473, 539, 602, 881, 946, 1078, 1204, 1762, 1892, 2107, 2156, 3311, 3524, 4214, 6167, 6622, 8428, 9691, 12334, 13244, 19382, 23177, 24668, 37883, 38764, 43169, 46354, 67837, 75766, 86338, 92708, 135674, 151532, 172676, 265181, 271348, 416713, 474859, 530362, 833426, 949718, 1060724, 1666852, 1856267, 1899436, 2916991, 3712534, 5833982, 7425068, 11667964, 20418937, 40837874, 81675748]

約数ペア:

[(1, 81675748), (2, 40837874), (4, 20418937), (7, 11667964), (11, 7425068), (14, 5833982), (22, 3712534), (28, 2916991), (43, 1899436), (44, 1856267), (49, 1666852), (77, 1060724), (86, 949718), (98, 833426), (154, 530362), (172, 474859), (196, 416713), (301, 271348), (308, 265181), (473, 172676), (539, 151532), (602, 135674), (881, 92708), (946, 86338), (1078, 75766), (1204, 67837), (1762, 46354), (1892, 43169), (2107, 38764), (2156, 37883), (3311, 24668), (3524, 23177), (4214, 19382), (6167, 13244), (6622, 12334), (8428, 9691)]