78255640

素因数分解:

$2^3\times 5^1\times {\mathrm{1956391}}^1$

素因数の和:1956402

約数の個数: 16

約数和(自身を含む): 176075280

約数和(自身を除く): 97819640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1956391, 3912782, 7825564, 9781955, 15651128, 19563910, 39127820, 78255640]

約数ペア:

[(1, 78255640), (2, 39127820), (4, 19563910), (5, 15651128), (8, 9781955), (10, 7825564), (20, 3912782), (40, 1956391)]