213978040

素因数分解:

$2^3\times 5^1\times {\mathrm{5349451}}^1$

素因数の和:5349462

約数の個数: 16

約数和(自身を含む): 481450680

約数和(自身を除く): 267472640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5349451, 10698902, 21397804, 26747255, 42795608, 53494510, 106989020, 213978040]

約数ペア:

[(1, 213978040), (2, 106989020), (4, 53494510), (5, 42795608), (8, 26747255), (10, 21397804), (20, 10698902), (40, 5349451)]