8432440

素因数分解:

$2^3\times 5^1\times {\mathrm{210811}}^1$

素因数の和:210822

約数の個数: 16

約数和(自身を含む): 18973080

約数和(自身を除く): 10540640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 210811, 421622, 843244, 1054055, 1686488, 2108110, 4216220, 8432440]

約数ペア:

[(1, 8432440), (2, 4216220), (4, 2108110), (5, 1686488), (8, 1054055), (10, 843244), (20, 421622), (40, 210811)]