19104980

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2269}}^1$

素因数の和:2699

約数の個数: 24

約数和(自身を含む): 40233480

約数和(自身を除く): 21128500

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 2269, 4210, 4538, 8420, 9076, 11345, 22690, 45380, 955249, 1910498, 3820996, 4776245, 9552490, 19104980]

約数ペア:

[(1, 19104980), (2, 9552490), (4, 4776245), (5, 3820996), (10, 1910498), (20, 955249), (421, 45380), (842, 22690), (1684, 11345), (2105, 9076), (2269, 8420), (4210, 4538)]