19115660

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3719}}^1$

素因数の和:3985

約数の個数: 24

約数和(自身を含む): 40309920

約数和(自身を除く): 21194260

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 3719, 5140, 7438, 14876, 18595, 37190, 74380, 955783, 1911566, 3823132, 4778915, 9557830, 19115660]

約数ペア:

[(1, 19115660), (2, 9557830), (4, 4778915), (5, 3823132), (10, 1911566), (20, 955783), (257, 74380), (514, 37190), (1028, 18595), (1285, 14876), (2570, 7438), (3719, 5140)]