19895620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14011}}^1$

素因数の和:14091

約数の個数: 24

約数和(自身を含む): 42372288

約数和(自身を除く): 22476668

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14011, 28022, 56044, 70055, 140110, 280220, 994781, 1989562, 3979124, 4973905, 9947810, 19895620]

約数ペア:

[(1, 19895620), (2, 9947810), (4, 4973905), (5, 3979124), (10, 1989562), (20, 994781), (71, 280220), (142, 140110), (284, 70055), (355, 56044), (710, 28022), (1420, 14011)]