28079810

素因数分解:

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

素因数の和:1058

約数の個数: 32

約数和(自身を含む): 55363392

約数和(自身を除く): 27283582

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 397, 643, 794, 1286, 1985, 3215, 3970, 4367, 6430, 7073, 8734, 14146, 21835, 35365, 43670, 70730, 255271, 510542, 1276355, 2552710, 2807981, 5615962, 14039905, 28079810]

約数ペア:

[(1, 28079810), (2, 14039905), (5, 5615962), (10, 2807981), (11, 2552710), (22, 1276355), (55, 510542), (110, 255271), (397, 70730), (643, 43670), (794, 35365), (1286, 21835), (1985, 14146), (3215, 8734), (3970, 7073), (4367, 6430)]