15564280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9049}}^1$

素因数の和:9103

約数の個数: 32

約数和(自身を含む): 35838000

約数和(自身を除く): 20273720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9049, 18098, 36196, 45245, 72392, 90490, 180980, 361960, 389107, 778214, 1556428, 1945535, 3112856, 3891070, 7782140, 15564280]

約数ペア:

[(1, 15564280), (2, 7782140), (4, 3891070), (5, 3112856), (8, 1945535), (10, 1556428), (20, 778214), (40, 389107), (43, 361960), (86, 180980), (172, 90490), (215, 72392), (344, 45245), (430, 36196), (860, 18098), (1720, 9049)]