89908940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{408677}}^1$

素因数の和:408697

約数の個数: 24

約数和(自身を含む): 205973712

約数和(自身を除く): 116064772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 408677, 817354, 1634708, 2043385, 4086770, 4495447, 8173540, 8990894, 17981788, 22477235, 44954470, 89908940]

約数ペア:

[(1, 89908940), (2, 44954470), (4, 22477235), (5, 17981788), (10, 8990894), (11, 8173540), (20, 4495447), (22, 4086770), (44, 2043385), (55, 1634708), (110, 817354), (220, 408677)]