1978040

素因数分解:

$2^3\times 5^1\times {\mathrm{49451}}^1$

素因数の和:49462

約数の個数: 16

約数和(自身を含む): 4450680

約数和(自身を除く): 2472640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49451, 98902, 197804, 247255, 395608, 494510, 989020, 1978040]

約数ペア:

[(1, 1978040), (2, 989020), (4, 494510), (5, 395608), (8, 247255), (10, 197804), (20, 98902), (40, 49451)]