8002761980

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1423979}}^1$

素因数の和:1424269

約数の個数: 24

約数和(自身を含む): 16865619120

約数和(自身を除く): 8862857140

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 1423979, 2847958, 5695916, 7119895, 14239790, 28479580, 400138099, 800276198, 1600552396, 2000690495, 4001380990, 8002761980]

約数ペア:

[(1, 8002761980), (2, 4001380990), (4, 2000690495), (5, 1600552396), (10, 800276198), (20, 400138099), (281, 28479580), (562, 14239790), (1124, 7119895), (1405, 5695916), (2810, 2847958), (5620, 1423979)]