78839006380

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{18682229}}^1$

素因数の和:18682449

約数の個数: 24

約数和(自身を含む): 166346575920

約数和(自身を除く): 87507569540

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 18682229, 37364458, 74728916, 93411145, 186822290, 373644580, 3941950319, 7883900638, 15767801276, 19709751595, 39419503190, 78839006380]

約数ペア:

[(1, 78839006380), (2, 39419503190), (4, 19709751595), (5, 15767801276), (10, 7883900638), (20, 3941950319), (211, 373644580), (422, 186822290), (844, 93411145), (1055, 74728916), (2110, 37364458), (4220, 18682229)]