81770416

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 120

約数和(自身を含む): 203049504

約数和(自身を除く): 121279088

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 71, 91, 98, 104, 112, 113, 142, 182, 196, 208, 226, 284, 364, 392, 452, 497, 568, 637, 728, 784, 791, 904, 923, 994, 1136, 1274, 1456, 1469, 1582, 1808, 1846, 1988, 2548, 2938, 3164, 3479, 3692, 3976, 5096, 5537, 5876, 6328, 6461, 6958, 7384, 7952, 8023, 10192, 10283, 11074, 11752, 12656, 12922, 13916, 14768, 16046, 20566, 22148, 23504, 25844, 27832, 32092, 41132, 44296, 45227, 51688, 55664, 56161, 64184, 71981, 82264, 88592, 90454, 103376, 104299, 112322, 128368, 143962, 164528, 180908, 208598, 224644, 287924, 361816, 393127, 417196, 449288, 575848, 723632, 730093, 786254, 834392, 898576, 1151696, 1460186, 1572508, 1668784, 2920372, 3145016, 5110651, 5840744, 6290032, 10221302, 11681488, 20442604, 40885208, 81770416]

約数ペア:

[(1, 81770416), (2, 40885208), (4, 20442604), (7, 11681488), (8, 10221302), (13, 6290032), (14, 5840744), (16, 5110651), (26, 3145016), (28, 2920372), (49, 1668784), (52, 1572508), (56, 1460186), (71, 1151696), (91, 898576), (98, 834392), (104, 786254), (112, 730093), (113, 723632), (142, 575848), (182, 449288), (196, 417196), (208, 393127), (226, 361816), (284, 287924), (364, 224644), (392, 208598), (452, 180908), (497, 164528), (568, 143962), (637, 128368), (728, 112322), (784, 104299), (791, 103376), (904, 90454), (923, 88592), (994, 82264), (1136, 71981), (1274, 64184), (1456, 56161), (1469, 55664), (1582, 51688), (1808, 45227), (1846, 44296), (1988, 41132), (2548, 32092), (2938, 27832), (3164, 25844), (3479, 23504), (3692, 22148), (3976, 20566), (5096, 16046), (5537, 14768), (5876, 13916), (6328, 12922), (6461, 12656), (6958, 11752), (7384, 11074), (7952, 10283), (8023, 10192)]