20391922400

素因数分解:

$2^5\times 5^2\times {\mathrm{79}}^1\times {\mathrm{307}}^1\times {\mathrm{1051}}^1$

素因数の和:1457

約数の個数: 144

約数和(自身を含む): 50624259840

約数和(自身を除く): 30232337440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 79, 80, 100, 158, 160, 200, 307, 316, 395, 400, 614, 632, 790, 800, 1051, 1228, 1264, 1535, 1580, 1975, 2102, 2456, 2528, 3070, 3160, 3950, 4204, 4912, 5255, 6140, 6320, 7675, 7900, 8408, 9824, 10510, 12280, 12640, 15350, 15800, 16816, 21020, 24253, 24560, 26275, 30700, 31600, 33632, 42040, 48506, 49120, 52550, 61400, 63200, 83029, 84080, 97012, 105100, 121265, 122800, 166058, 168160, 194024, 210200, 242530, 245600, 322657, 332116, 388048, 415145, 420400, 485060, 606325, 645314, 664232, 776096, 830290, 840800, 970120, 1212650, 1290628, 1328464, 1613285, 1660580, 1940240, 2075725, 2425300, 2581256, 2656928, 3226570, 3321160, 3880480, 4151450, 4850600, 5162512, 6453140, 6642320, 8066425, 8302900, 9701200, 10325024, 12906280, 13284640, 16132850, 16605800, 19402400, 25489903, 25812560, 32265700, 33211600, 50979806, 51625120, 64531400, 66423200, 101959612, 127449515, 129062800, 203919224, 254899030, 258125600, 407838448, 509798060, 637247575, 815676896, 1019596120, 1274495150, 2039192240, 2548990300, 4078384480, 5097980600, 10195961200, 20391922400]

約数ペア:

[(1, 20391922400), (2, 10195961200), (4, 5097980600), (5, 4078384480), (8, 2548990300), (10, 2039192240), (16, 1274495150), (20, 1019596120), (25, 815676896), (32, 637247575), (40, 509798060), (50, 407838448), (79, 258125600), (80, 254899030), (100, 203919224), (158, 129062800), (160, 127449515), (200, 101959612), (307, 66423200), (316, 64531400), (395, 51625120), (400, 50979806), (614, 33211600), (632, 32265700), (790, 25812560), (800, 25489903), (1051, 19402400), (1228, 16605800), (1264, 16132850), (1535, 13284640), (1580, 12906280), (1975, 10325024), (2102, 9701200), (2456, 8302900), (2528, 8066425), (3070, 6642320), (3160, 6453140), (3950, 5162512), (4204, 4850600), (4912, 4151450), (5255, 3880480), (6140, 3321160), (6320, 3226570), (7675, 2656928), (7900, 2581256), (8408, 2425300), (9824, 2075725), (10510, 1940240), (12280, 1660580), (12640, 1613285), (15350, 1328464), (15800, 1290628), (16816, 1212650), (21020, 970120), (24253, 840800), (24560, 830290), (26275, 776096), (30700, 664232), (31600, 645314), (33632, 606325), (42040, 485060), (48506, 420400), (49120, 415145), (52550, 388048), (61400, 332116), (63200, 322657), (83029, 245600), (84080, 242530), (97012, 210200), (105100, 194024), (121265, 168160), (122800, 166058)]