28109207840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{21881}}^1$

素因数の和:21971

約数の個数: 192

約数和(自身を含む): 80464140288

約数和(自身を除く): 52354932448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 37, 40, 56, 62, 70, 74, 80, 112, 124, 140, 148, 155, 160, 185, 217, 224, 248, 259, 280, 296, 310, 370, 434, 496, 518, 560, 592, 620, 740, 868, 992, 1036, 1085, 1120, 1147, 1184, 1240, 1295, 1480, 1736, 2072, 2170, 2294, 2480, 2590, 2960, 3472, 4144, 4340, 4588, 4960, 5180, 5735, 5920, 6944, 8029, 8288, 8680, 9176, 10360, 11470, 16058, 17360, 18352, 20720, 21881, 22940, 32116, 34720, 36704, 40145, 41440, 43762, 45880, 64232, 80290, 87524, 91760, 109405, 128464, 153167, 160580, 175048, 183520, 218810, 256928, 306334, 321160, 350096, 437620, 612668, 642320, 678311, 700192, 765835, 809597, 875240, 1225336, 1284640, 1356622, 1531670, 1619194, 1750480, 2450672, 2713244, 3063340, 3238388, 3391555, 3500960, 4047985, 4748177, 4901344, 5426488, 5667179, 6126680, 6476776, 6783110, 8095970, 9496354, 10852976, 11334358, 12253360, 12953552, 13566220, 16191940, 18992708, 21705952, 22668716, 23740885, 24506720, 25097507, 25907104, 27132440, 28335895, 32383880, 37985416, 45337432, 47481770, 50195014, 54264880, 56671790, 64767760, 75970832, 90674864, 94963540, 100390028, 108529760, 113343580, 125487535, 129535520, 151941664, 175682549, 181349728, 189927080, 200780056, 226687160, 250975070, 351365098, 379854160, 401560112, 453374320, 501950140, 702730196, 759708320, 803120224, 878412745, 906748640, 1003900280, 1405460392, 1756825490, 2007800560, 2810920784, 3513650980, 4015601120, 5621841568, 7027301960, 14054603920, 28109207840]

約数ペア:

[(1, 28109207840), (2, 14054603920), (4, 7027301960), (5, 5621841568), (7, 4015601120), (8, 3513650980), (10, 2810920784), (14, 2007800560), (16, 1756825490), (20, 1405460392), (28, 1003900280), (31, 906748640), (32, 878412745), (35, 803120224), (37, 759708320), (40, 702730196), (56, 501950140), (62, 453374320), (70, 401560112), (74, 379854160), (80, 351365098), (112, 250975070), (124, 226687160), (140, 200780056), (148, 189927080), (155, 181349728), (160, 175682549), (185, 151941664), (217, 129535520), (224, 125487535), (248, 113343580), (259, 108529760), (280, 100390028), (296, 94963540), (310, 90674864), (370, 75970832), (434, 64767760), (496, 56671790), (518, 54264880), (560, 50195014), (592, 47481770), (620, 45337432), (740, 37985416), (868, 32383880), (992, 28335895), (1036, 27132440), (1085, 25907104), (1120, 25097507), (1147, 24506720), (1184, 23740885), (1240, 22668716), (1295, 21705952), (1480, 18992708), (1736, 16191940), (2072, 13566220), (2170, 12953552), (2294, 12253360), (2480, 11334358), (2590, 10852976), (2960, 9496354), (3472, 8095970), (4144, 6783110), (4340, 6476776), (4588, 6126680), (4960, 5667179), (5180, 5426488), (5735, 4901344), (5920, 4748177), (6944, 4047985), (8029, 3500960), (8288, 3391555), (8680, 3238388), (9176, 3063340), (10360, 2713244), (11470, 2450672), (16058, 1750480), (17360, 1619194), (18352, 1531670), (20720, 1356622), (21881, 1284640), (22940, 1225336), (32116, 875240), (34720, 809597), (36704, 765835), (40145, 700192), (41440, 678311), (43762, 642320), (45880, 612668), (64232, 437620), (80290, 350096), (87524, 321160), (91760, 306334), (109405, 256928), (128464, 218810), (153167, 183520), (160580, 175048)]