388686256

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{24967}}^1$

素因数の和:25121

約数の個数: 40

約数和(自身を含む): 866888960

約数和(自身を除く): 478202704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1946, 2224, 3892, 7784, 15568, 24967, 49934, 99868, 174769, 199736, 349538, 399472, 699076, 1398152, 2796304, 3470413, 6940826, 13881652, 24292891, 27763304, 48585782, 55526608, 97171564, 194343128, 388686256]

約数ペア:

[(1, 388686256), (2, 194343128), (4, 97171564), (7, 55526608), (8, 48585782), (14, 27763304), (16, 24292891), (28, 13881652), (56, 6940826), (112, 3470413), (139, 2796304), (278, 1398152), (556, 699076), (973, 399472), (1112, 349538), (1946, 199736), (2224, 174769), (3892, 99868), (7784, 49934), (15568, 24967)]