25728620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29917}}^1$

素因数の和:29969

約数の個数: 24

約数和(自身を含む): 55288464

約数和(自身を除く): 29559844

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 29917, 59834, 119668, 149585, 299170, 598340, 1286431, 2572862, 5145724, 6432155, 12864310, 25728620]

約数ペア:

[(1, 25728620), (2, 12864310), (4, 6432155), (5, 5145724), (10, 2572862), (20, 1286431), (43, 598340), (86, 299170), (172, 149585), (215, 119668), (430, 59834), (860, 29917)]