1278121336

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{11503}}^1$

素因数の和:11588

約数の個数: 64

約数和(自身を含む): 2733350400

約数和(自身を除く): 1455229064

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 43, 68, 76, 86, 136, 152, 172, 323, 344, 646, 731, 817, 1292, 1462, 1634, 2584, 2924, 3268, 5848, 6536, 11503, 13889, 23006, 27778, 46012, 55556, 92024, 111112, 195551, 218557, 391102, 437114, 494629, 782204, 874228, 989258, 1564408, 1748456, 1978516, 3715469, 3957032, 7430938, 8408693, 9397951, 14861876, 16817386, 18795902, 29723752, 33634772, 37591804, 67269544, 75183608, 159765167, 319530334, 639060668, 1278121336]

約数ペア:

[(1, 1278121336), (2, 639060668), (4, 319530334), (8, 159765167), (17, 75183608), (19, 67269544), (34, 37591804), (38, 33634772), (43, 29723752), (68, 18795902), (76, 16817386), (86, 14861876), (136, 9397951), (152, 8408693), (172, 7430938), (323, 3957032), (344, 3715469), (646, 1978516), (731, 1748456), (817, 1564408), (1292, 989258), (1462, 874228), (1634, 782204), (2584, 494629), (2924, 437114), (3268, 391102), (5848, 218557), (6536, 195551), (11503, 111112), (13889, 92024), (23006, 55556), (27778, 46012)]