215840440

素因数分解:

$2^3\times 5^1\times {\mathrm{5396011}}^1$

素因数の和:5396022

約数の個数: 16

約数和(自身を含む): 485641080

約数和(自身を除く): 269800640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5396011, 10792022, 21584044, 26980055, 43168088, 53960110, 107920220, 215840440]

約数ペア:

[(1, 215840440), (2, 107920220), (4, 53960110), (5, 43168088), (8, 26980055), (10, 21584044), (20, 10792022), (40, 5396011)]