11989780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{54499}}^1$

素因数の和:54519

約数の個数: 24

約数和(自身を含む): 27468000

約数和(自身を除く): 15478220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 54499, 108998, 217996, 272495, 544990, 599489, 1089980, 1198978, 2397956, 2997445, 5994890, 11989780]

約数ペア:

[(1, 11989780), (2, 5994890), (4, 2997445), (5, 2397956), (10, 1198978), (11, 1089980), (20, 599489), (22, 544990), (44, 272495), (55, 217996), (110, 108998), (220, 54499)]