8602990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 17021664

約数和(自身を除く): 8418674

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197, 394, 397, 794, 985, 1970, 1985, 2167, 3970, 4334, 4367, 8734, 10835, 21670, 21835, 43670, 78209, 156418, 391045, 782090, 860299, 1720598, 4301495, 8602990]

約数ペア:

[(1, 8602990), (2, 4301495), (5, 1720598), (10, 860299), (11, 782090), (22, 391045), (55, 156418), (110, 78209), (197, 43670), (394, 21835), (397, 21670), (794, 10835), (985, 8734), (1970, 4367), (1985, 4334), (2167, 3970)]