40219240

素因数分解:

$2^3\times 5^1\times {\mathrm{1005481}}^1$

素因数の和:1005492

約数の個数: 16

約数和(自身を含む): 90493380

約数和(自身を除く): 50274140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1005481, 2010962, 4021924, 5027405, 8043848, 10054810, 20109620, 40219240]

約数ペア:

[(1, 40219240), (2, 20109620), (4, 10054810), (5, 8043848), (8, 5027405), (10, 4021924), (20, 2010962), (40, 1005481)]