28812040

素因数分解:

$2^3\times 5^1\times {\mathrm{720301}}^1$

素因数の和:720312

約数の個数: 16

約数和(自身を含む): 64827180

約数和(自身を除く): 36015140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 720301, 1440602, 2881204, 3601505, 5762408, 7203010, 14406020, 28812040]

約数ペア:

[(1, 28812040), (2, 14406020), (4, 7203010), (5, 5762408), (8, 3601505), (10, 2881204), (20, 1440602), (40, 720301)]