788821640

素因数分解:

$2^3\times 5^1\times {\mathrm{1451}}^1\times {\mathrm{13591}}^1$

素因数の和:15053

約数の個数: 32

約数和(自身を含む): 1776202560

約数和(自身を除く): 987380920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1451, 2902, 5804, 7255, 11608, 13591, 14510, 27182, 29020, 54364, 58040, 67955, 108728, 135910, 271820, 543640, 19720541, 39441082, 78882164, 98602705, 157764328, 197205410, 394410820, 788821640]

約数ペア:

[(1, 788821640), (2, 394410820), (4, 197205410), (5, 157764328), (8, 98602705), (10, 78882164), (20, 39441082), (40, 19720541), (1451, 543640), (2902, 271820), (5804, 135910), (7255, 108728), (11608, 67955), (13591, 58040), (14510, 54364), (27182, 29020)]