128988760

素因数分解:

$2^3\times 5^1\times {\mathrm{3224719}}^1$

素因数の和:3224730

約数の個数: 16

約数和(自身を含む): 290224800

約数和(自身を除く): 161236040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3224719, 6449438, 12898876, 16123595, 25797752, 32247190, 64494380, 128988760]

約数ペア:

[(1, 128988760), (2, 64494380), (4, 32247190), (5, 25797752), (8, 16123595), (10, 12898876), (20, 6449438), (40, 3224719)]