17889715180

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4239269}}^1$

素因数の和:4239489

約数の個数: 24

約数和(自身を含む): 37746460080

約数和(自身を除く): 19856744900

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 4239269, 8478538, 16957076, 21196345, 42392690, 84785380, 894485759, 1788971518, 3577943036, 4472428795, 8944857590, 17889715180]

約数ペア:

[(1, 17889715180), (2, 8944857590), (4, 4472428795), (5, 3577943036), (10, 1788971518), (20, 894485759), (211, 84785380), (422, 42392690), (844, 21196345), (1055, 16957076), (2110, 8478538), (4220, 4239269)]