89947880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{204427}}^1$

素因数の和:204449

約数の個数: 32

約数和(自身を含む): 220782240

約数和(自身を除く): 130834360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 204427, 408854, 817708, 1022135, 1635416, 2044270, 2248697, 4088540, 4497394, 8177080, 8994788, 11243485, 17989576, 22486970, 44973940, 89947880]

約数ペア:

[(1, 89947880), (2, 44973940), (4, 22486970), (5, 17989576), (8, 11243485), (10, 8994788), (11, 8177080), (20, 4497394), (22, 4088540), (40, 2248697), (44, 2044270), (55, 1635416), (88, 1022135), (110, 817708), (220, 408854), (440, 204427)]