18689080

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9941}}^1$

素因数の和:9999

約数の個数: 32

約数和(自身を含む): 42949440

約数和(自身を除く): 24260360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 9941, 19882, 39764, 49705, 79528, 99410, 198820, 397640, 467227, 934454, 1868908, 2336135, 3737816, 4672270, 9344540, 18689080]

約数ペア:

[(1, 18689080), (2, 9344540), (4, 4672270), (5, 3737816), (8, 2336135), (10, 1868908), (20, 934454), (40, 467227), (47, 397640), (94, 198820), (188, 99410), (235, 79528), (376, 49705), (470, 39764), (940, 19882), (1880, 9941)]