28643860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204599}}^1$

素因数の和:204615

約数の個数: 24

約数和(自身を含む): 68745600

約数和(自身を除く): 40101740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204599, 409198, 818396, 1022995, 1432193, 2045990, 2864386, 4091980, 5728772, 7160965, 14321930, 28643860]

約数ペア:

[(1, 28643860), (2, 14321930), (4, 7160965), (5, 5728772), (7, 4091980), (10, 2864386), (14, 2045990), (20, 1432193), (28, 1022995), (35, 818396), (70, 409198), (140, 204599)]