90717880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{206177}}^1$

素因数の和:206199

約数の個数: 32

約数和(自身を含む): 222672240

約数和(自身を除く): 131954360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 206177, 412354, 824708, 1030885, 1649416, 2061770, 2267947, 4123540, 4535894, 8247080, 9071788, 11339735, 18143576, 22679470, 45358940, 90717880]

約数ペア:

[(1, 90717880), (2, 45358940), (4, 22679470), (5, 18143576), (8, 11339735), (10, 9071788), (11, 8247080), (20, 4535894), (22, 4123540), (40, 2267947), (44, 2061770), (55, 1649416), (88, 1030885), (110, 824708), (220, 412354), (440, 206177)]