81836360

素因数分解:

$2^3\times 5^1\times {\mathrm{2045909}}^1$

素因数の和:2045920

約数の個数: 16

約数和(自身を含む): 184131900

約数和(自身を除く): 102295540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2045909, 4091818, 8183636, 10229545, 16367272, 20459090, 40918180, 81836360]

約数ペア:

[(1, 81836360), (2, 40918180), (4, 20459090), (5, 16367272), (8, 10229545), (10, 8183636), (20, 4091818), (40, 2045909)]