28731976

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:734

約数の個数: 64

約数和(自身を含む): 67495680

約数和(自身を除く): 38763704

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 61, 91, 104, 122, 182, 244, 364, 427, 488, 647, 728, 793, 854, 1294, 1586, 1708, 2588, 3172, 3416, 4529, 5176, 5551, 6344, 8411, 9058, 11102, 16822, 18116, 22204, 33644, 36232, 39467, 44408, 58877, 67288, 78934, 117754, 157868, 235508, 276269, 315736, 471016, 513071, 552538, 1026142, 1105076, 2052284, 2210152, 3591497, 4104568, 7182994, 14365988, 28731976]

約数ペア:

[(1, 28731976), (2, 14365988), (4, 7182994), (7, 4104568), (8, 3591497), (13, 2210152), (14, 2052284), (26, 1105076), (28, 1026142), (52, 552538), (56, 513071), (61, 471016), (91, 315736), (104, 276269), (122, 235508), (182, 157868), (244, 117754), (364, 78934), (427, 67288), (488, 58877), (647, 44408), (728, 39467), (793, 36232), (854, 33644), (1294, 22204), (1586, 18116), (1708, 16822), (2588, 11102), (3172, 9058), (3416, 8411), (4529, 6344), (5176, 5551)]