28298970

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 240

約数和(自身を含む): 95344128

約数和(自身を除く): 67045158

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 27, 30, 31, 35, 42, 45, 46, 49, 54, 62, 63, 69, 70, 81, 90, 93, 98, 105, 115, 126, 135, 138, 147, 155, 161, 162, 186, 189, 207, 210, 217, 230, 245, 270, 279, 294, 310, 315, 322, 345, 378, 405, 414, 434, 441, 465, 483, 490, 558, 567, 621, 630, 651, 690, 713, 735, 805, 810, 837, 882, 930, 945, 966, 1035, 1085, 1127, 1134, 1242, 1302, 1323, 1395, 1426, 1449, 1470, 1519, 1610, 1674, 1863, 1890, 1953, 2070, 2139, 2170, 2205, 2254, 2415, 2511, 2646, 2790, 2835, 2898, 3038, 3105, 3255, 3381, 3565, 3726, 3906, 3969, 4185, 4278, 4347, 4410, 4557, 4830, 4991, 5022, 5635, 5670, 5859, 6210, 6417, 6510, 6615, 6762, 7130, 7245, 7595, 7938, 8370, 8694, 9114, 9315, 9765, 9982, 10143, 10695, 11270, 11718, 12555, 12834, 13041, 13230, 13671, 14490, 14973, 15190, 16905, 17577, 18630, 19251, 19530, 19845, 20286, 21390, 21735, 22785, 24955, 25110, 26082, 27342, 29295, 29946, 30429, 32085, 33810, 34937, 35154, 38502, 39690, 41013, 43470, 44919, 45570, 49910, 50715, 57753, 58590, 60858, 64170, 65205, 68355, 69874, 74865, 82026, 87885, 89838, 91287, 96255, 101430, 104811, 115506, 123039, 130410, 134757, 136710, 149730, 152145, 174685, 175770, 182574, 192510, 205065, 209622, 224595, 246078, 269514, 288765, 304290, 314433, 349370, 404271, 410130, 449190, 456435, 524055, 577530, 615195, 628866, 673785, 808542, 912870, 943299, 1048110, 1230390, 1347570, 1572165, 1886598, 2021355, 2829897, 3144330, 4042710, 4716495, 5659794, 9432990, 14149485, 28298970]

約数ペア:

[(1, 28298970), (2, 14149485), (3, 9432990), (5, 5659794), (6, 4716495), (7, 4042710), (9, 3144330), (10, 2829897), (14, 2021355), (15, 1886598), (18, 1572165), (21, 1347570), (23, 1230390), (27, 1048110), (30, 943299), (31, 912870), (35, 808542), (42, 673785), (45, 628866), (46, 615195), (49, 577530), (54, 524055), (62, 456435), (63, 449190), (69, 410130), (70, 404271), (81, 349370), (90, 314433), (93, 304290), (98, 288765), (105, 269514), (115, 246078), (126, 224595), (135, 209622), (138, 205065), (147, 192510), (155, 182574), (161, 175770), (162, 174685), (186, 152145), (189, 149730), (207, 136710), (210, 134757), (217, 130410), (230, 123039), (245, 115506), (270, 104811), (279, 101430), (294, 96255), (310, 91287), (315, 89838), (322, 87885), (345, 82026), (378, 74865), (405, 69874), (414, 68355), (434, 65205), (441, 64170), (465, 60858), (483, 58590), (490, 57753), (558, 50715), (567, 49910), (621, 45570), (630, 44919), (651, 43470), (690, 41013), (713, 39690), (735, 38502), (805, 35154), (810, 34937), (837, 33810), (882, 32085), (930, 30429), (945, 29946), (966, 29295), (1035, 27342), (1085, 26082), (1127, 25110), (1134, 24955), (1242, 22785), (1302, 21735), (1323, 21390), (1395, 20286), (1426, 19845), (1449, 19530), (1470, 19251), (1519, 18630), (1610, 17577), (1674, 16905), (1863, 15190), (1890, 14973), (1953, 14490), (2070, 13671), (2139, 13230), (2170, 13041), (2205, 12834), (2254, 12555), (2415, 11718), (2511, 11270), (2646, 10695), (2790, 10143), (2835, 9982), (2898, 9765), (3038, 9315), (3105, 9114), (3255, 8694), (3381, 8370), (3565, 7938), (3726, 7595), (3906, 7245), (3969, 7130), (4185, 6762), (4278, 6615), (4347, 6510), (4410, 6417), (4557, 6210), (4830, 5859), (4991, 5670), (5022, 5635)]