80816620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139339}}^1$

素因数の和:139377

約数の個数: 24

約数和(自身を含む): 175568400

約数和(自身を除く): 94751780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 139339, 278678, 557356, 696695, 1393390, 2786780, 4040831, 8081662, 16163324, 20204155, 40408310, 80816620]

約数ペア:

[(1, 80816620), (2, 40408310), (4, 20204155), (5, 16163324), (10, 8081662), (20, 4040831), (29, 2786780), (58, 1393390), (116, 696695), (145, 557356), (290, 278678), (580, 139339)]