81137238

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 216297216

約数和(自身を除く): 135159978

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 23, 26, 39, 42, 46, 49, 69, 71, 78, 91, 98, 138, 142, 147, 161, 169, 182, 213, 273, 294, 299, 322, 338, 426, 483, 497, 507, 546, 598, 637, 897, 923, 966, 994, 1014, 1127, 1183, 1274, 1491, 1633, 1794, 1846, 1911, 2093, 2254, 2366, 2769, 2982, 3266, 3381, 3479, 3549, 3822, 3887, 4186, 4899, 5538, 6279, 6461, 6762, 6958, 7098, 7774, 8281, 9798, 10437, 11431, 11661, 11999, 12558, 12922, 14651, 16562, 19383, 20874, 21229, 22862, 23322, 23998, 24843, 27209, 29302, 34293, 35997, 38766, 42458, 43953, 45227, 49686, 54418, 63687, 68586, 71994, 80017, 81627, 83993, 87906, 90454, 127374, 135681, 148603, 160034, 163254, 167986, 190463, 240051, 251979, 271362, 275977, 297206, 380926, 445809, 480102, 503958, 551954, 571389, 587951, 827931, 891618, 1040221, 1142778, 1175902, 1655862, 1763853, 1931839, 2080442, 3120663, 3527706, 3863678, 5795517, 6241326, 11591034, 13522873, 27045746, 40568619, 81137238]

約数ペア:

[(1, 81137238), (2, 40568619), (3, 27045746), (6, 13522873), (7, 11591034), (13, 6241326), (14, 5795517), (21, 3863678), (23, 3527706), (26, 3120663), (39, 2080442), (42, 1931839), (46, 1763853), (49, 1655862), (69, 1175902), (71, 1142778), (78, 1040221), (91, 891618), (98, 827931), (138, 587951), (142, 571389), (147, 551954), (161, 503958), (169, 480102), (182, 445809), (213, 380926), (273, 297206), (294, 275977), (299, 271362), (322, 251979), (338, 240051), (426, 190463), (483, 167986), (497, 163254), (507, 160034), (546, 148603), (598, 135681), (637, 127374), (897, 90454), (923, 87906), (966, 83993), (994, 81627), (1014, 80017), (1127, 71994), (1183, 68586), (1274, 63687), (1491, 54418), (1633, 49686), (1794, 45227), (1846, 43953), (1911, 42458), (2093, 38766), (2254, 35997), (2366, 34293), (2769, 29302), (2982, 27209), (3266, 24843), (3381, 23998), (3479, 23322), (3549, 22862), (3822, 21229), (3887, 20874), (4186, 19383), (4899, 16562), (5538, 14651), (6279, 12922), (6461, 12558), (6762, 11999), (6958, 11661), (7098, 11431), (7774, 10437), (8281, 9798)]