8160280

素因数分解:

$2^3\times 5^1\times {\mathrm{204007}}^1$

素因数の和:204018

約数の個数: 16

約数和(自身を含む): 18360720

約数和(自身を除く): 10200440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 204007, 408014, 816028, 1020035, 1632056, 2040070, 4080140, 8160280]

約数ペア:

[(1, 8160280), (2, 4080140), (4, 2040070), (5, 1632056), (8, 1020035), (10, 816028), (20, 408014), (40, 204007)]