19387040

素因数分解:

$2^5\times 5^1\times {\mathrm{121169}}^1$

素因数の和:121184

約数の個数: 24

約数和(自身を含む): 45802260

約数和(自身を除く): 26415220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 121169, 242338, 484676, 605845, 969352, 1211690, 1938704, 2423380, 3877408, 4846760, 9693520, 19387040]

約数ペア:

[(1, 19387040), (2, 9693520), (4, 4846760), (5, 3877408), (8, 2423380), (10, 1938704), (16, 1211690), (20, 969352), (32, 605845), (40, 484676), (80, 242338), (160, 121169)]