644113988

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{14087}}^1$

素因数の和:14192

約数の個数: 48

約数和(自身を含む): 1363267584

約数和(自身を除く): 719153596

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 71, 92, 142, 161, 284, 322, 497, 644, 994, 1633, 1988, 3266, 6532, 11431, 14087, 22862, 28174, 45724, 56348, 98609, 197218, 324001, 394436, 648002, 1000177, 1296004, 2000354, 2268007, 4000708, 4536014, 7001239, 9072028, 14002478, 23004071, 28004956, 46008142, 92016284, 161028497, 322056994, 644113988]

約数ペア:

[(1, 644113988), (2, 322056994), (4, 161028497), (7, 92016284), (14, 46008142), (23, 28004956), (28, 23004071), (46, 14002478), (71, 9072028), (92, 7001239), (142, 4536014), (161, 4000708), (284, 2268007), (322, 2000354), (497, 1296004), (644, 1000177), (994, 648002), (1633, 394436), (1988, 324001), (3266, 197218), (6532, 98609), (11431, 56348), (14087, 45724), (22862, 28174)]