28077894

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 73543680

約数和(自身を除く): 45465786

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 37, 39, 46, 47, 54, 69, 74, 78, 94, 111, 117, 138, 141, 207, 222, 234, 282, 299, 333, 351, 414, 423, 481, 598, 611, 621, 666, 702, 846, 851, 897, 962, 999, 1081, 1222, 1242, 1269, 1443, 1702, 1739, 1794, 1833, 1998, 2162, 2538, 2553, 2691, 2886, 3243, 3478, 3666, 4329, 5106, 5217, 5382, 5499, 6486, 7659, 8073, 8658, 9729, 10434, 10998, 11063, 12987, 14053, 15318, 15651, 16146, 16497, 19458, 22126, 22607, 22977, 25974, 28106, 29187, 31302, 32994, 33189, 39997, 42159, 45214, 45954, 46953, 58374, 66378, 67821, 79994, 84318, 93906, 99567, 119991, 126477, 135642, 199134, 203463, 239982, 252954, 298701, 359973, 379431, 406926, 519961, 597402, 610389, 719946, 758862, 1039922, 1079919, 1220778, 1559883, 2159838, 3119766, 4679649, 9359298, 14038947, 28077894]

約数ペア:

[(1, 28077894), (2, 14038947), (3, 9359298), (6, 4679649), (9, 3119766), (13, 2159838), (18, 1559883), (23, 1220778), (26, 1079919), (27, 1039922), (37, 758862), (39, 719946), (46, 610389), (47, 597402), (54, 519961), (69, 406926), (74, 379431), (78, 359973), (94, 298701), (111, 252954), (117, 239982), (138, 203463), (141, 199134), (207, 135642), (222, 126477), (234, 119991), (282, 99567), (299, 93906), (333, 84318), (351, 79994), (414, 67821), (423, 66378), (481, 58374), (598, 46953), (611, 45954), (621, 45214), (666, 42159), (702, 39997), (846, 33189), (851, 32994), (897, 31302), (962, 29187), (999, 28106), (1081, 25974), (1222, 22977), (1242, 22607), (1269, 22126), (1443, 19458), (1702, 16497), (1739, 16146), (1794, 15651), (1833, 15318), (1998, 14053), (2162, 12987), (2538, 11063), (2553, 10998), (2691, 10434), (2886, 9729), (3243, 8658), (3478, 8073), (3666, 7659), (4329, 6486), (5106, 5499), (5217, 5382)]