27853515

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 50100960

約数和(自身を除く): 22247445

約数列:

[1, 3, 5, 9, 15, 45, 61, 73, 139, 183, 219, 305, 365, 417, 549, 657, 695, 915, 1095, 1251, 2085, 2745, 3285, 4453, 6255, 8479, 10147, 13359, 22265, 25437, 30441, 40077, 42395, 50735, 66795, 76311, 91323, 127185, 152205, 200385, 381555, 456615, 618967, 1856901, 3094835, 5570703, 9284505, 27853515]

約数ペア:

[(1, 27853515), (3, 9284505), (5, 5570703), (9, 3094835), (15, 1856901), (45, 618967), (61, 456615), (73, 381555), (139, 200385), (183, 152205), (219, 127185), (305, 91323), (365, 76311), (417, 66795), (549, 50735), (657, 42395), (695, 40077), (915, 30441), (1095, 25437), (1251, 22265), (2085, 13359), (2745, 10147), (3285, 8479), (4453, 6255)]