640263744

素因数分解:

$2^6\times 3^3\times {\mathrm{53}}^1\times {\mathrm{6991}}^1$

素因数の和:7065

約数の個数: 112

約数和(自身を含む): 1918045440

約数和(自身を除く): 1277781696

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 53, 54, 64, 72, 96, 106, 108, 144, 159, 192, 212, 216, 288, 318, 424, 432, 477, 576, 636, 848, 864, 954, 1272, 1431, 1696, 1728, 1908, 2544, 2862, 3392, 3816, 5088, 5724, 6991, 7632, 10176, 11448, 13982, 15264, 20973, 22896, 27964, 30528, 41946, 45792, 55928, 62919, 83892, 91584, 111856, 125838, 167784, 188757, 223712, 251676, 335568, 370523, 377514, 447424, 503352, 671136, 741046, 755028, 1006704, 1111569, 1342272, 1482092, 1510056, 2013408, 2223138, 2964184, 3020112, 3334707, 4026816, 4446276, 5928368, 6040224, 6669414, 8892552, 10004121, 11856736, 12080448, 13338828, 17785104, 20008242, 23713472, 26677656, 35570208, 40016484, 53355312, 71140416, 80032968, 106710624, 160065936, 213421248, 320131872, 640263744]

約数ペア:

[(1, 640263744), (2, 320131872), (3, 213421248), (4, 160065936), (6, 106710624), (8, 80032968), (9, 71140416), (12, 53355312), (16, 40016484), (18, 35570208), (24, 26677656), (27, 23713472), (32, 20008242), (36, 17785104), (48, 13338828), (53, 12080448), (54, 11856736), (64, 10004121), (72, 8892552), (96, 6669414), (106, 6040224), (108, 5928368), (144, 4446276), (159, 4026816), (192, 3334707), (212, 3020112), (216, 2964184), (288, 2223138), (318, 2013408), (424, 1510056), (432, 1482092), (477, 1342272), (576, 1111569), (636, 1006704), (848, 755028), (864, 741046), (954, 671136), (1272, 503352), (1431, 447424), (1696, 377514), (1728, 370523), (1908, 335568), (2544, 251676), (2862, 223712), (3392, 188757), (3816, 167784), (5088, 125838), (5724, 111856), (6991, 91584), (7632, 83892), (10176, 62919), (11448, 55928), (13982, 45792), (15264, 41946), (20973, 30528), (22896, 27964)]