278364009020

素因数分解:

$2^2\times 5^1\times {\mathrm{13918200451}}^1$

素因数の和:13918200460

約数の個数: 12

約数和(自身を含む): 584564418984

約数和(自身を除く): 306200409964

約数列:

[1, 2, 4, 5, 10, 20, 13918200451, 27836400902, 55672801804, 69591002255, 139182004510, 278364009020]

約数ペア:

[(1, 278364009020), (2, 139182004510), (4, 69591002255), (5, 55672801804), (10, 27836400902), (20, 13918200451)]