78278320

素因数分解:

$2^4\times 5^1\times {\mathrm{978479}}^1$

素因数の和:978492

約数の個数: 20

約数和(自身を含む): 181997280

約数和(自身を除く): 103718960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 978479, 1956958, 3913916, 4892395, 7827832, 9784790, 15655664, 19569580, 39139160, 78278320]

約数ペア:

[(1, 78278320), (2, 39139160), (4, 19569580), (5, 15655664), (8, 9784790), (10, 7827832), (16, 4892395), (20, 3913916), (40, 1956958), (80, 978479)]