18824080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21391}}^1$

素因数の和:21415

約数の個数: 40

約数和(自身を含む): 47746944

約数和(自身を除く): 28922864

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21391, 42782, 85564, 106955, 171128, 213910, 235301, 342256, 427820, 470602, 855640, 941204, 1176505, 1711280, 1882408, 2353010, 3764816, 4706020, 9412040, 18824080]

約数ペア:

[(1, 18824080), (2, 9412040), (4, 4706020), (5, 3764816), (8, 2353010), (10, 1882408), (11, 1711280), (16, 1176505), (20, 941204), (22, 855640), (40, 470602), (44, 427820), (55, 342256), (80, 235301), (88, 213910), (110, 171128), (176, 106955), (220, 85564), (440, 42782), (880, 21391)]