187564280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109049}}^1$

素因数の和:109103

約数の個数: 32

約数和(自身を含む): 431838000

約数和(自身を除く): 244273720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 109049, 218098, 436196, 545245, 872392, 1090490, 2180980, 4361960, 4689107, 9378214, 18756428, 23445535, 37512856, 46891070, 93782140, 187564280]

約数ペア:

[(1, 187564280), (2, 93782140), (4, 46891070), (5, 37512856), (8, 23445535), (10, 18756428), (20, 9378214), (40, 4689107), (43, 4361960), (86, 2180980), (172, 1090490), (215, 872392), (344, 545245), (430, 436196), (860, 218098), (1720, 109049)]