638844

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{383}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 1505280

約数和(自身を除く): 866436

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 383, 417, 556, 766, 834, 1149, 1532, 1668, 2298, 4596, 53237, 106474, 159711, 212948, 319422, 638844]

約数ペア:

[(1, 638844), (2, 319422), (3, 212948), (4, 159711), (6, 106474), (12, 53237), (139, 4596), (278, 2298), (383, 1668), (417, 1532), (556, 1149), (766, 834)]