19959340

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9689}}^1$

素因数の和:9801

約数の個数: 24

約数和(自身を含む): 42325920

約数和(自身を除く): 22366580

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9689, 19378, 38756, 48445, 96890, 193780, 997967, 1995934, 3991868, 4989835, 9979670, 19959340]

約数ペア:

[(1, 19959340), (2, 9979670), (4, 4989835), (5, 3991868), (10, 1995934), (20, 997967), (103, 193780), (206, 96890), (412, 48445), (515, 38756), (1030, 19378), (2060, 9689)]