81996012

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 216

約数和(自身を含む): 262918656

約数和(自身を除く): 180922644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 43, 46, 47, 49, 63, 69, 84, 86, 92, 94, 98, 126, 129, 138, 141, 147, 161, 172, 188, 196, 207, 252, 258, 276, 282, 294, 301, 322, 329, 387, 414, 423, 441, 483, 516, 564, 588, 602, 644, 658, 774, 828, 846, 882, 903, 966, 987, 989, 1081, 1127, 1204, 1316, 1449, 1548, 1692, 1764, 1806, 1932, 1974, 1978, 2021, 2107, 2162, 2254, 2303, 2709, 2898, 2961, 2967, 3243, 3381, 3612, 3948, 3956, 4042, 4214, 4324, 4508, 4606, 5418, 5796, 5922, 5934, 6063, 6321, 6486, 6762, 6909, 6923, 7567, 8084, 8428, 8901, 9212, 9729, 10143, 10836, 11844, 11868, 12126, 12642, 12972, 13524, 13818, 13846, 14147, 15134, 17802, 18189, 18963, 19458, 20286, 20727, 20769, 22701, 24252, 25284, 27636, 27692, 28294, 30268, 35604, 36378, 37926, 38916, 40572, 41454, 41538, 42441, 45402, 46483, 48461, 52969, 56588, 62307, 68103, 72756, 75852, 82908, 83076, 84882, 90804, 92966, 96922, 99029, 105938, 124614, 127323, 136206, 139449, 145383, 158907, 169764, 185932, 193844, 198058, 211876, 249228, 254646, 272412, 278898, 290766, 297087, 317814, 325381, 396116, 418347, 436149, 476721, 509292, 557796, 581532, 594174, 635628, 650762, 836694, 872298, 891261, 953442, 976143, 1188348, 1301524, 1673388, 1744596, 1782522, 1906884, 1952286, 2277667, 2928429, 3565044, 3904572, 4555334, 5856858, 6833001, 9110668, 11713716, 13666002, 20499003, 27332004, 40998006, 81996012]

約数ペア:

[(1, 81996012), (2, 40998006), (3, 27332004), (4, 20499003), (6, 13666002), (7, 11713716), (9, 9110668), (12, 6833001), (14, 5856858), (18, 4555334), (21, 3904572), (23, 3565044), (28, 2928429), (36, 2277667), (42, 1952286), (43, 1906884), (46, 1782522), (47, 1744596), (49, 1673388), (63, 1301524), (69, 1188348), (84, 976143), (86, 953442), (92, 891261), (94, 872298), (98, 836694), (126, 650762), (129, 635628), (138, 594174), (141, 581532), (147, 557796), (161, 509292), (172, 476721), (188, 436149), (196, 418347), (207, 396116), (252, 325381), (258, 317814), (276, 297087), (282, 290766), (294, 278898), (301, 272412), (322, 254646), (329, 249228), (387, 211876), (414, 198058), (423, 193844), (441, 185932), (483, 169764), (516, 158907), (564, 145383), (588, 139449), (602, 136206), (644, 127323), (658, 124614), (774, 105938), (828, 99029), (846, 96922), (882, 92966), (903, 90804), (966, 84882), (987, 83076), (989, 82908), (1081, 75852), (1127, 72756), (1204, 68103), (1316, 62307), (1449, 56588), (1548, 52969), (1692, 48461), (1764, 46483), (1806, 45402), (1932, 42441), (1974, 41538), (1978, 41454), (2021, 40572), (2107, 38916), (2162, 37926), (2254, 36378), (2303, 35604), (2709, 30268), (2898, 28294), (2961, 27692), (2967, 27636), (3243, 25284), (3381, 24252), (3612, 22701), (3948, 20769), (3956, 20727), (4042, 20286), (4214, 19458), (4324, 18963), (4508, 18189), (4606, 17802), (5418, 15134), (5796, 14147), (5922, 13846), (5934, 13818), (6063, 13524), (6321, 12972), (6486, 12642), (6762, 12126), (6909, 11868), (6923, 11844), (7567, 10836), (8084, 10143), (8428, 9729), (8901, 9212)]