78845080

素因数分解:

$2^3\times 5^1\times {\mathrm{1971127}}^1$

素因数の和:1971138

約数の個数: 16

約数和(自身を含む): 177401520

約数和(自身を除く): 98556440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1971127, 3942254, 7884508, 9855635, 15769016, 19711270, 39422540, 78845080]

約数ペア:

[(1, 78845080), (2, 39422540), (4, 19711270), (5, 15769016), (8, 9855635), (10, 7884508), (20, 3942254), (40, 1971127)]