256816

素因数分解:

$2^4\times 7^1\times {\mathrm{2293}}^1$

素因数の和:2308

約数の個数: 20

約数和(自身を含む): 568912

約数和(自身を除く): 312096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2293, 4586, 9172, 16051, 18344, 32102, 36688, 64204, 128408, 256816]

約数ペア:

[(1, 256816), (2, 128408), (4, 64204), (7, 36688), (8, 32102), (14, 18344), (16, 16051), (28, 9172), (56, 4586), (112, 2293)]