82636640

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2161}}^1$

素因数の和:2415

約数の個数: 48

約数和(自身を含む): 196136640

約数和(自身を除く): 113500000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 956, 1195, 1912, 2161, 2390, 3824, 4322, 4780, 7648, 8644, 9560, 10805, 17288, 19120, 21610, 34576, 38240, 43220, 69152, 86440, 172880, 345760, 516479, 1032958, 2065916, 2582395, 4131832, 5164790, 8263664, 10329580, 16527328, 20659160, 41318320, 82636640]

約数ペア:

[(1, 82636640), (2, 41318320), (4, 20659160), (5, 16527328), (8, 10329580), (10, 8263664), (16, 5164790), (20, 4131832), (32, 2582395), (40, 2065916), (80, 1032958), (160, 516479), (239, 345760), (478, 172880), (956, 86440), (1195, 69152), (1912, 43220), (2161, 38240), (2390, 34576), (3824, 21610), (4322, 19120), (4780, 17288), (7648, 10805), (8644, 9560)]