780318

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{563}}^1$

素因数の和:589

約数の個数: 48

約数和(自身を含む): 2111616

約数和(自身を除く): 1331298

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 563, 693, 1126, 1386, 1689, 3378, 3941, 5067, 6193, 7882, 10134, 11823, 12386, 18579, 23646, 35469, 37158, 43351, 55737, 70938, 86702, 111474, 130053, 260106, 390159, 780318]

約数ペア:

[(1, 780318), (2, 390159), (3, 260106), (6, 130053), (7, 111474), (9, 86702), (11, 70938), (14, 55737), (18, 43351), (21, 37158), (22, 35469), (33, 23646), (42, 18579), (63, 12386), (66, 11823), (77, 10134), (99, 7882), (126, 6193), (154, 5067), (198, 3941), (231, 3378), (462, 1689), (563, 1386), (693, 1126)]