56159620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{643}}^1$

素因数の和:1060

約数の個数: 48

約数和(自身を含む): 129181248

約数和(自身を除く): 73021628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 397, 643, 794, 1286, 1588, 1985, 2572, 3215, 3970, 4367, 6430, 7073, 7940, 8734, 12860, 14146, 17468, 21835, 28292, 35365, 43670, 70730, 87340, 141460, 255271, 510542, 1021084, 1276355, 2552710, 2807981, 5105420, 5615962, 11231924, 14039905, 28079810, 56159620]

約数ペア:

[(1, 56159620), (2, 28079810), (4, 14039905), (5, 11231924), (10, 5615962), (11, 5105420), (20, 2807981), (22, 2552710), (44, 1276355), (55, 1021084), (110, 510542), (220, 255271), (397, 141460), (643, 87340), (794, 70730), (1286, 43670), (1588, 35365), (1985, 28292), (2572, 21835), (3215, 17468), (3970, 14146), (4367, 12860), (6430, 8734), (7073, 7940)]