20481860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146299}}^1$

素因数の和:146315

約数の個数: 24

約数和(自身を含む): 49156800

約数和(自身を除く): 28674940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146299, 292598, 585196, 731495, 1024093, 1462990, 2048186, 2925980, 4096372, 5120465, 10240930, 20481860]

約数ペア:

[(1, 20481860), (2, 10240930), (4, 5120465), (5, 4096372), (7, 2925980), (10, 2048186), (14, 1462990), (20, 1024093), (28, 731495), (35, 585196), (70, 292598), (140, 146299)]