72160280

素因数分解:

$2^3\times 5^1\times {\mathrm{1804007}}^1$

素因数の和:1804018

約数の個数: 16

約数和(自身を含む): 162360720

約数和(自身を除く): 90200440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1804007, 3608014, 7216028, 9020035, 14432056, 18040070, 36080140, 72160280]

約数ペア:

[(1, 72160280), (2, 36080140), (4, 18040070), (5, 14432056), (8, 9020035), (10, 7216028), (20, 3608014), (40, 1804007)]