20201860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144299}}^1$

素因数の和:144315

約数の個数: 24

約数和(自身を含む): 48484800

約数和(自身を除く): 28282940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144299, 288598, 577196, 721495, 1010093, 1442990, 2020186, 2885980, 4040372, 5050465, 10100930, 20201860]

約数ペア:

[(1, 20201860), (2, 10100930), (4, 5050465), (5, 4040372), (7, 2885980), (10, 2020186), (14, 1442990), (20, 1010093), (28, 721495), (35, 577196), (70, 288598), (140, 144299)]