16872080

素因数分解:

$2^4\times 5^1\times {\mathrm{210901}}^1$

素因数の和:210914

約数の個数: 20

約数和(自身を含む): 39227772

約数和(自身を除く): 22355692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210901, 421802, 843604, 1054505, 1687208, 2109010, 3374416, 4218020, 8436040, 16872080]

約数ペア:

[(1, 16872080), (2, 8436040), (4, 4218020), (5, 3374416), (8, 2109010), (10, 1687208), (16, 1054505), (20, 843604), (40, 421802), (80, 210901)]