78804920

素因数分解:

$2^3\times 5^1\times {\mathrm{1970123}}^1$

素因数の和:1970134

約数の個数: 16

約数和(自身を含む): 177311160

約数和(自身を除く): 98506240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1970123, 3940246, 7880492, 9850615, 15760984, 19701230, 39402460, 78804920]

約数ペア:

[(1, 78804920), (2, 39402460), (4, 19701230), (5, 15760984), (8, 9850615), (10, 7880492), (20, 3940246), (40, 1970123)]