678743982

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{256517}}^1$

素因数の和:256542

約数の個数: 48

約数和(自身を含む): 1754583120

約数和(自身を除く): 1075839138

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646, 256517, 513034, 769551, 1539102, 1795619, 2308653, 3591238, 4617306, 5386857, 6925959, 10773714, 12569333, 13851918, 16160571, 25138666, 32321142, 37707999, 48481713, 75415998, 96963426, 113123997, 226247994, 339371991, 678743982]

約数ペア:

[(1, 678743982), (2, 339371991), (3, 226247994), (6, 113123997), (7, 96963426), (9, 75415998), (14, 48481713), (18, 37707999), (21, 32321142), (27, 25138666), (42, 16160571), (49, 13851918), (54, 12569333), (63, 10773714), (98, 6925959), (126, 5386857), (147, 4617306), (189, 3591238), (294, 2308653), (378, 1795619), (441, 1539102), (882, 769551), (1323, 513034), (2646, 256517)]