218025940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{991027}}^1$

素因数の和:991047

約数の個数: 24

約数和(自身を含む): 499478112

約数和(自身を除く): 281452172

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 991027, 1982054, 3964108, 4955135, 9910270, 10901297, 19820540, 21802594, 43605188, 54506485, 109012970, 218025940]

約数ペア:

[(1, 218025940), (2, 109012970), (4, 54506485), (5, 43605188), (10, 21802594), (11, 19820540), (20, 10901297), (22, 9910270), (44, 4955135), (55, 3964108), (110, 1982054), (220, 991027)]