20581704

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2035

約数の個数: 96

約数和(自身を含む): 65520000

約数和(自身を除く): 44938296

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 18, 22, 24, 26, 33, 36, 39, 44, 52, 66, 72, 78, 88, 99, 104, 117, 132, 143, 156, 198, 234, 264, 286, 312, 396, 429, 468, 572, 792, 858, 936, 1144, 1287, 1716, 1999, 2574, 3432, 3998, 5148, 5997, 7996, 10296, 11994, 15992, 17991, 21989, 23988, 25987, 35982, 43978, 47976, 51974, 65967, 71964, 77961, 87956, 103948, 131934, 143928, 155922, 175912, 197901, 207896, 233883, 263868, 285857, 311844, 395802, 467766, 527736, 571714, 623688, 791604, 857571, 935532, 1143428, 1583208, 1715142, 1871064, 2286856, 2572713, 3430284, 5145426, 6860568, 10290852, 20581704]

約数ペア:

[(1, 20581704), (2, 10290852), (3, 6860568), (4, 5145426), (6, 3430284), (8, 2572713), (9, 2286856), (11, 1871064), (12, 1715142), (13, 1583208), (18, 1143428), (22, 935532), (24, 857571), (26, 791604), (33, 623688), (36, 571714), (39, 527736), (44, 467766), (52, 395802), (66, 311844), (72, 285857), (78, 263868), (88, 233883), (99, 207896), (104, 197901), (117, 175912), (132, 155922), (143, 143928), (156, 131934), (198, 103948), (234, 87956), (264, 77961), (286, 71964), (312, 65967), (396, 51974), (429, 47976), (468, 43978), (572, 35982), (792, 25987), (858, 23988), (936, 21989), (1144, 17991), (1287, 15992), (1716, 11994), (1999, 10296), (2574, 7996), (3432, 5997), (3998, 5148)]