27979588

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 62563200

約数和(自身を除く): 34583612

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 79, 91, 98, 139, 158, 182, 196, 278, 316, 364, 553, 556, 637, 973, 1027, 1106, 1274, 1807, 1946, 2054, 2212, 2548, 3614, 3871, 3892, 4108, 6811, 7189, 7228, 7742, 10981, 12649, 13622, 14378, 15484, 21962, 25298, 27244, 28756, 43924, 50323, 50596, 76867, 88543, 100646, 142753, 153734, 177086, 201292, 285506, 307468, 354172, 538069, 571012, 999271, 1076138, 1998542, 2152276, 3997084, 6994897, 13989794, 27979588]

約数ペア:

[(1, 27979588), (2, 13989794), (4, 6994897), (7, 3997084), (13, 2152276), (14, 1998542), (26, 1076138), (28, 999271), (49, 571012), (52, 538069), (79, 354172), (91, 307468), (98, 285506), (139, 201292), (158, 177086), (182, 153734), (196, 142753), (278, 100646), (316, 88543), (364, 76867), (553, 50596), (556, 50323), (637, 43924), (973, 28756), (1027, 27244), (1106, 25298), (1274, 21962), (1807, 15484), (1946, 14378), (2054, 13622), (2212, 12649), (2548, 10981), (3614, 7742), (3871, 7228), (3892, 7189), (4108, 6811)]