81235880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{184627}}^1$

素因数の和:184649

約数の個数: 32

約数和(自身を含む): 199398240

約数和(自身を除く): 118162360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 184627, 369254, 738508, 923135, 1477016, 1846270, 2030897, 3692540, 4061794, 7385080, 8123588, 10154485, 16247176, 20308970, 40617940, 81235880]

約数ペア:

[(1, 81235880), (2, 40617940), (4, 20308970), (5, 16247176), (8, 10154485), (10, 8123588), (11, 7385080), (20, 4061794), (22, 3692540), (40, 2030897), (44, 1846270), (55, 1477016), (88, 923135), (110, 738508), (220, 369254), (440, 184627)]