399196

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:333

約数の個数: 24

約数和(自身を含む): 816480

約数和(自身を除く): 417284

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 269, 371, 538, 742, 1076, 1484, 1883, 3766, 7532, 14257, 28514, 57028, 99799, 199598, 399196]

約数ペア:

[(1, 399196), (2, 199598), (4, 99799), (7, 57028), (14, 28514), (28, 14257), (53, 7532), (106, 3766), (212, 1883), (269, 1484), (371, 1076), (538, 742)]