16072720

素因数分解:

$2^4\times 5^1\times {\mathrm{200909}}^1$

素因数の和:200922

約数の個数: 20

約数和(自身を含む): 37369260

約数和(自身を除く): 21296540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 200909, 401818, 803636, 1004545, 1607272, 2009090, 3214544, 4018180, 8036360, 16072720]

約数ペア:

[(1, 16072720), (2, 8036360), (4, 4018180), (5, 3214544), (8, 2009090), (10, 1607272), (16, 1004545), (20, 803636), (40, 401818), (80, 200909)]