40802227220

素因数分解:

$2^2\times 5^1\times {\mathrm{2040111361}}^1$

素因数の和:2040111370

約数の個数: 12

約数和(自身を含む): 85684677204

約数和(自身を除く): 44882449984

約数列:

[1, 2, 4, 5, 10, 20, 2040111361, 4080222722, 8160445444, 10200556805, 20401113610, 40802227220]

約数ペア:

[(1, 40802227220), (2, 20401113610), (4, 10200556805), (5, 8160445444), (10, 4080222722), (20, 2040111361)]