19948090

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18301}}^1$

素因数の和:18417

約数の個数: 16

約数和(自身を含む): 36237960

約数和(自身を除く): 16289870

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18301, 36602, 91505, 183010, 1994809, 3989618, 9974045, 19948090]

約数ペア:

[(1, 19948090), (2, 9974045), (5, 3989618), (10, 1994809), (109, 183010), (218, 91505), (545, 36602), (1090, 18301)]