18647680

素因数分解:

$2^7\times 5^1\times {\mathrm{29137}}^1$

素因数の和:29156

約数の個数: 32

約数和(自身を含む): 44581140

約数和(自身を除く): 25933460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 29137, 58274, 116548, 145685, 233096, 291370, 466192, 582740, 932384, 1165480, 1864768, 2330960, 3729536, 4661920, 9323840, 18647680]

約数ペア:

[(1, 18647680), (2, 9323840), (4, 4661920), (5, 3729536), (8, 2330960), (10, 1864768), (16, 1165480), (20, 932384), (32, 582740), (40, 466192), (64, 291370), (80, 233096), (128, 145685), (160, 116548), (320, 58274), (640, 29137)]