90969560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{206749}}^1$

素因数の和:206771

約数の個数: 32

約数和(自身を含む): 223290000

約数和(自身を除く): 132320440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 206749, 413498, 826996, 1033745, 1653992, 2067490, 2274239, 4134980, 4548478, 8269960, 9096956, 11371195, 18193912, 22742390, 45484780, 90969560]

約数ペア:

[(1, 90969560), (2, 45484780), (4, 22742390), (5, 18193912), (8, 11371195), (10, 9096956), (11, 8269960), (20, 4548478), (22, 4134980), (40, 2274239), (44, 2067490), (55, 1653992), (88, 1033745), (110, 826996), (220, 413498), (440, 206749)]