28638040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15233}}^1$

素因数の和:15291

約数の個数: 32

約数和(自身を含む): 65810880

約数和(自身を除く): 37172840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 15233, 30466, 60932, 76165, 121864, 152330, 304660, 609320, 715951, 1431902, 2863804, 3579755, 5727608, 7159510, 14319020, 28638040]

約数ペア:

[(1, 28638040), (2, 14319020), (4, 7159510), (5, 5727608), (8, 3579755), (10, 2863804), (20, 1431902), (40, 715951), (47, 609320), (94, 304660), (188, 152330), (235, 121864), (376, 76165), (470, 60932), (940, 30466), (1880, 15233)]