78245680

素因数分解:

$2^4\times 5^1\times {\mathrm{978071}}^1$

素因数の和:978084

約数の個数: 20

約数和(自身を含む): 181921392

約数和(自身を除く): 103675712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 978071, 1956142, 3912284, 4890355, 7824568, 9780710, 15649136, 19561420, 39122840, 78245680]

約数ペア:

[(1, 78245680), (2, 39122840), (4, 19561420), (5, 15649136), (8, 9780710), (10, 7824568), (16, 4890355), (20, 3912284), (40, 1956142), (80, 978071)]