28078764

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^2$

素因数の和:144

約数の個数: 108

約数和(自身を含む): 82248264

約数和(自身を除く): 54169500

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 49, 51, 53, 68, 84, 98, 102, 106, 119, 147, 159, 196, 204, 212, 238, 294, 318, 357, 371, 476, 588, 636, 714, 742, 833, 901, 1113, 1428, 1484, 1666, 1802, 2226, 2499, 2597, 2703, 2809, 3332, 3604, 4452, 4998, 5194, 5406, 5618, 6307, 7791, 8427, 9996, 10388, 10812, 11236, 12614, 15582, 16854, 18921, 19663, 25228, 31164, 33708, 37842, 39326, 44149, 47753, 58989, 75684, 78652, 88298, 95506, 117978, 132447, 137641, 143259, 176596, 191012, 235956, 264894, 275282, 286518, 334271, 412923, 529788, 550564, 573036, 668542, 825846, 1002813, 1337084, 1651692, 2005626, 2339897, 4011252, 4679794, 7019691, 9359588, 14039382, 28078764]

約数ペア:

[(1, 28078764), (2, 14039382), (3, 9359588), (4, 7019691), (6, 4679794), (7, 4011252), (12, 2339897), (14, 2005626), (17, 1651692), (21, 1337084), (28, 1002813), (34, 825846), (42, 668542), (49, 573036), (51, 550564), (53, 529788), (68, 412923), (84, 334271), (98, 286518), (102, 275282), (106, 264894), (119, 235956), (147, 191012), (159, 176596), (196, 143259), (204, 137641), (212, 132447), (238, 117978), (294, 95506), (318, 88298), (357, 78652), (371, 75684), (476, 58989), (588, 47753), (636, 44149), (714, 39326), (742, 37842), (833, 33708), (901, 31164), (1113, 25228), (1428, 19663), (1484, 18921), (1666, 16854), (1802, 15582), (2226, 12614), (2499, 11236), (2597, 10812), (2703, 10388), (2809, 9996), (3332, 8427), (3604, 7791), (4452, 6307), (4998, 5618), (5194, 5406)]