20337380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145267}}^1$

素因数の和:145283

約数の個数: 24

約数和(自身を含む): 48810048

約数和(自身を除く): 28472668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145267, 290534, 581068, 726335, 1016869, 1452670, 2033738, 2905340, 4067476, 5084345, 10168690, 20337380]

約数ペア:

[(1, 20337380), (2, 10168690), (4, 5084345), (5, 4067476), (7, 2905340), (10, 2033738), (14, 1452670), (20, 1016869), (28, 726335), (35, 581068), (70, 290534), (140, 145267)]