18419680

素因数分解:

$2^5\times 5^1\times {\mathrm{115123}}^1$

素因数の和:115138

約数の個数: 24

約数和(自身を含む): 43516872

約数和(自身を除く): 25097192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 115123, 230246, 460492, 575615, 920984, 1151230, 1841968, 2302460, 3683936, 4604920, 9209840, 18419680]

約数ペア:

[(1, 18419680), (2, 9209840), (4, 4604920), (5, 3683936), (8, 2302460), (10, 1841968), (16, 1151230), (20, 920984), (32, 575615), (40, 460492), (80, 230246), (160, 115123)]