20479216

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 41050944

約数和(自身を除く): 20571728

約数列:

[1, 2, 4, 8, 16, 47, 94, 113, 188, 226, 241, 376, 452, 482, 752, 904, 964, 1808, 1928, 3856, 5311, 10622, 11327, 21244, 22654, 27233, 42488, 45308, 54466, 84976, 90616, 108932, 181232, 217864, 435728, 1279951, 2559902, 5119804, 10239608, 20479216]

約数ペア:

[(1, 20479216), (2, 10239608), (4, 5119804), (8, 2559902), (16, 1279951), (47, 435728), (94, 217864), (113, 181232), (188, 108932), (226, 90616), (241, 84976), (376, 54466), (452, 45308), (482, 42488), (752, 27233), (904, 22654), (964, 21244), (1808, 11327), (1928, 10622), (3856, 5311)]