216165620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{982571}}^1$

素因数の和:982591

約数の個数: 24

約数和(自身を含む): 495216288

約数和(自身を除く): 279050668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 982571, 1965142, 3930284, 4912855, 9825710, 10808281, 19651420, 21616562, 43233124, 54041405, 108082810, 216165620]

約数ペア:

[(1, 216165620), (2, 108082810), (4, 54041405), (5, 43233124), (10, 21616562), (11, 19651420), (20, 10808281), (22, 9825710), (44, 4912855), (55, 3930284), (110, 1965142), (220, 982571)]