81114640

素因数分解:

$2^4\times 5^1\times {\mathrm{1013933}}^1$

素因数の和:1013946

約数の個数: 20

約数和(自身を含む): 188591724

約数和(自身を除く): 107477084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013933, 2027866, 4055732, 5069665, 8111464, 10139330, 16222928, 20278660, 40557320, 81114640]

約数ペア:

[(1, 81114640), (2, 40557320), (4, 20278660), (5, 16222928), (8, 10139330), (10, 8111464), (16, 5069665), (20, 4055732), (40, 2027866), (80, 1013933)]