19987450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{57107}}^1$

素因数の和:57126

約数の個数: 24

約数和(自身を含む): 42488352

約数和(自身を除く): 22500902

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 350, 57107, 114214, 285535, 399749, 571070, 799498, 1427675, 1998745, 2855350, 3997490, 9993725, 19987450]

約数ペア:

[(1, 19987450), (2, 9993725), (5, 3997490), (7, 2855350), (10, 1998745), (14, 1427675), (25, 799498), (35, 571070), (50, 399749), (70, 285535), (175, 114214), (350, 57107)]