22419920

素因数分解:

$2^4\times 5^1\times {\mathrm{280249}}^1$

素因数の和:280262

約数の個数: 20

約数和(自身を含む): 52126500

約数和(自身を除く): 29706580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 280249, 560498, 1120996, 1401245, 2241992, 2802490, 4483984, 5604980, 11209960, 22419920]

約数ペア:

[(1, 22419920), (2, 11209960), (4, 5604980), (5, 4483984), (8, 2802490), (10, 2241992), (16, 1401245), (20, 1120996), (40, 560498), (80, 280249)]