28108720

素因数分解:

$2^4\times 5^1\times {\mathrm{351359}}^1$

素因数の和:351372

約数の個数: 20

約数和(自身を含む): 65352960

約数和(自身を除く): 37244240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351359, 702718, 1405436, 1756795, 2810872, 3513590, 5621744, 7027180, 14054360, 28108720]

約数ペア:

[(1, 28108720), (2, 14054360), (4, 7027180), (5, 5621744), (8, 3513590), (10, 2810872), (16, 1756795), (20, 1405436), (40, 702718), (80, 351359)]