18906800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{4297}}^1$

素因数の和:4326

約数の個数: 60

約数和(自身を含む): 49564536

約数和(自身を除く): 30657736

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4297, 4400, 8594, 17188, 21485, 34376, 42970, 47267, 68752, 85940, 94534, 107425, 171880, 189068, 214850, 236335, 343760, 378136, 429700, 472670, 756272, 859400, 945340, 1181675, 1718800, 1890680, 2363350, 3781360, 4726700, 9453400, 18906800]

約数ペア:

[(1, 18906800), (2, 9453400), (4, 4726700), (5, 3781360), (8, 2363350), (10, 1890680), (11, 1718800), (16, 1181675), (20, 945340), (22, 859400), (25, 756272), (40, 472670), (44, 429700), (50, 378136), (55, 343760), (80, 236335), (88, 214850), (100, 189068), (110, 171880), (176, 107425), (200, 94534), (220, 85940), (275, 68752), (400, 47267), (440, 42970), (550, 34376), (880, 21485), (1100, 17188), (2200, 8594), (4297, 4400)]