19962680

素因数分解:

$2^3\times 5^1\times {\mathrm{499067}}^1$

素因数の和:499078

約数の個数: 16

約数和(自身を含む): 44916120

約数和(自身を除く): 24953440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499067, 998134, 1996268, 2495335, 3992536, 4990670, 9981340, 19962680]

約数ペア:

[(1, 19962680), (2, 9981340), (4, 4990670), (5, 3992536), (8, 2495335), (10, 1996268), (20, 998134), (40, 499067)]