28513660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{203669}}^1$

素因数の和:203685

約数の個数: 24

約数和(自身を含む): 68433120

約数和(自身を除く): 39919460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 203669, 407338, 814676, 1018345, 1425683, 2036690, 2851366, 4073380, 5702732, 7128415, 14256830, 28513660]

約数ペア:

[(1, 28513660), (2, 14256830), (4, 7128415), (5, 5702732), (7, 4073380), (10, 2851366), (14, 2036690), (20, 1425683), (28, 1018345), (35, 814676), (70, 407338), (140, 203669)]