28115269

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 10954811

約数列:

[1, 7, 13, 19, 23, 49, 91, 101, 133, 161, 247, 299, 437, 637, 707, 931, 1127, 1313, 1729, 1919, 2093, 2323, 3059, 4949, 5681, 9191, 12103, 13433, 14651, 16261, 21413, 24947, 30199, 39767, 44137, 64337, 94031, 113827, 174629, 211393, 278369, 308959, 573781, 1222403, 1479751, 2162713, 4016467, 28115269]

約数ペア:

[(1, 28115269), (7, 4016467), (13, 2162713), (19, 1479751), (23, 1222403), (49, 573781), (91, 308959), (101, 278369), (133, 211393), (161, 174629), (247, 113827), (299, 94031), (437, 64337), (637, 44137), (707, 39767), (931, 30199), (1127, 24947), (1313, 21413), (1729, 16261), (1919, 14651), (2093, 13433), (2323, 12103), (3059, 9191), (4949, 5681)]