20005778800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{263}}^1\times {\mathrm{3881}}^1$

素因数の和:4176

約数の個数: 180

約数和(自身を含む): 56138098896

約数和(自身を除く): 36132320096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 263, 280, 350, 392, 400, 490, 526, 560, 700, 784, 980, 1052, 1225, 1315, 1400, 1841, 1960, 2104, 2450, 2630, 2800, 3682, 3881, 3920, 4208, 4900, 5260, 6575, 7364, 7762, 9205, 9800, 10520, 12887, 13150, 14728, 15524, 18410, 19405, 19600, 21040, 25774, 26300, 27167, 29456, 31048, 36820, 38810, 46025, 51548, 52600, 54334, 62096, 64435, 73640, 77620, 92050, 97025, 103096, 105200, 108668, 128870, 135835, 147280, 155240, 184100, 190169, 194050, 206192, 217336, 257740, 271670, 310480, 322175, 368200, 380338, 388100, 434672, 515480, 543340, 644350, 679175, 736400, 760676, 776200, 950845, 1020703, 1030960, 1086680, 1288700, 1358350, 1521352, 1552400, 1901690, 2041406, 2173360, 2577400, 2716700, 3042704, 3803380, 4082812, 4754225, 5103515, 5154800, 5433400, 7144921, 7606760, 8165624, 9508450, 10207030, 10866800, 14289842, 15213520, 16331248, 19016900, 20414060, 25517575, 28579684, 35724605, 38033800, 40828120, 50014447, 51035150, 57159368, 71449210, 76067600, 81656240, 100028894, 102070300, 114318736, 142898420, 178623025, 200057788, 204140600, 250072235, 285796840, 357246050, 400115576, 408281200, 500144470, 571593680, 714492100, 800231152, 1000288940, 1250361175, 1428984200, 2000577880, 2500722350, 2857968400, 4001155760, 5001444700, 10002889400, 20005778800]

約数ペア:

[(1, 20005778800), (2, 10002889400), (4, 5001444700), (5, 4001155760), (7, 2857968400), (8, 2500722350), (10, 2000577880), (14, 1428984200), (16, 1250361175), (20, 1000288940), (25, 800231152), (28, 714492100), (35, 571593680), (40, 500144470), (49, 408281200), (50, 400115576), (56, 357246050), (70, 285796840), (80, 250072235), (98, 204140600), (100, 200057788), (112, 178623025), (140, 142898420), (175, 114318736), (196, 102070300), (200, 100028894), (245, 81656240), (263, 76067600), (280, 71449210), (350, 57159368), (392, 51035150), (400, 50014447), (490, 40828120), (526, 38033800), (560, 35724605), (700, 28579684), (784, 25517575), (980, 20414060), (1052, 19016900), (1225, 16331248), (1315, 15213520), (1400, 14289842), (1841, 10866800), (1960, 10207030), (2104, 9508450), (2450, 8165624), (2630, 7606760), (2800, 7144921), (3682, 5433400), (3881, 5154800), (3920, 5103515), (4208, 4754225), (4900, 4082812), (5260, 3803380), (6575, 3042704), (7364, 2716700), (7762, 2577400), (9205, 2173360), (9800, 2041406), (10520, 1901690), (12887, 1552400), (13150, 1521352), (14728, 1358350), (15524, 1288700), (18410, 1086680), (19405, 1030960), (19600, 1020703), (21040, 950845), (25774, 776200), (26300, 760676), (27167, 736400), (29456, 679175), (31048, 644350), (36820, 543340), (38810, 515480), (46025, 434672), (51548, 388100), (52600, 380338), (54334, 368200), (62096, 322175), (64435, 310480), (73640, 271670), (77620, 257740), (92050, 217336), (97025, 206192), (103096, 194050), (105200, 190169), (108668, 184100), (128870, 155240), (135835, 147280)]