9910990

素因数分解:

$2^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5189}}^1$

素因数の和:5387

約数の個数: 16

約数和(自身を含む): 17936640

約数和(自身を除く): 8025650

約数列:

[1, 2, 5, 10, 191, 382, 955, 1910, 5189, 10378, 25945, 51890, 991099, 1982198, 4955495, 9910990]

約数ペア:

[(1, 9910990), (2, 4955495), (5, 1982198), (10, 991099), (191, 51890), (382, 25945), (955, 10378), (1910, 5189)]