20191370500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:711

約数の個数: 192

約数和(自身を含む): 51494317056

約数和(自身を除く): 31302946556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 125, 140, 142, 175, 193, 250, 284, 350, 355, 386, 421, 497, 500, 700, 710, 772, 842, 875, 965, 994, 1351, 1420, 1684, 1750, 1775, 1930, 1988, 2105, 2485, 2702, 2947, 3500, 3550, 3860, 4210, 4825, 4970, 5404, 5894, 6755, 7100, 8420, 8875, 9650, 9940, 10525, 11788, 12425, 13510, 13703, 14735, 17750, 19300, 21050, 24125, 24850, 27020, 27406, 29470, 29891, 33775, 35500, 42100, 48250, 49700, 52625, 54812, 58940, 59782, 62125, 67550, 68515, 73675, 81253, 95921, 96500, 105250, 119564, 124250, 135100, 137030, 147350, 149455, 162506, 168875, 191842, 209237, 210500, 248500, 274060, 294700, 298910, 325012, 337750, 342575, 368375, 383684, 406265, 418474, 479605, 568771, 597820, 675500, 685150, 736750, 747275, 812530, 836948, 959210, 1046185, 1137542, 1370300, 1473500, 1494550, 1625060, 1712875, 1918420, 2031325, 2092370, 2275084, 2398025, 2843855, 2989100, 3425750, 3736375, 4062650, 4184740, 4796050, 5230925, 5687710, 5768963, 6851500, 7472750, 8125300, 9592100, 10156625, 10461850, 11375420, 11537926, 11990125, 14219275, 14945500, 20313250, 20923700, 23075852, 23980250, 26154625, 28438550, 28844815, 40382741, 40626500, 47960500, 52309250, 56877100, 57689630, 71096375, 80765482, 104618500, 115379260, 142192750, 144224075, 161530964, 201913705, 284385500, 288448150, 403827410, 576896300, 721120375, 807654820, 1009568525, 1442240750, 2019137050, 2884481500, 4038274100, 5047842625, 10095685250, 20191370500]

約数ペア:

[(1, 20191370500), (2, 10095685250), (4, 5047842625), (5, 4038274100), (7, 2884481500), (10, 2019137050), (14, 1442240750), (20, 1009568525), (25, 807654820), (28, 721120375), (35, 576896300), (50, 403827410), (70, 288448150), (71, 284385500), (100, 201913705), (125, 161530964), (140, 144224075), (142, 142192750), (175, 115379260), (193, 104618500), (250, 80765482), (284, 71096375), (350, 57689630), (355, 56877100), (386, 52309250), (421, 47960500), (497, 40626500), (500, 40382741), (700, 28844815), (710, 28438550), (772, 26154625), (842, 23980250), (875, 23075852), (965, 20923700), (994, 20313250), (1351, 14945500), (1420, 14219275), (1684, 11990125), (1750, 11537926), (1775, 11375420), (1930, 10461850), (1988, 10156625), (2105, 9592100), (2485, 8125300), (2702, 7472750), (2947, 6851500), (3500, 5768963), (3550, 5687710), (3860, 5230925), (4210, 4796050), (4825, 4184740), (4970, 4062650), (5404, 3736375), (5894, 3425750), (6755, 2989100), (7100, 2843855), (8420, 2398025), (8875, 2275084), (9650, 2092370), (9940, 2031325), (10525, 1918420), (11788, 1712875), (12425, 1625060), (13510, 1494550), (13703, 1473500), (14735, 1370300), (17750, 1137542), (19300, 1046185), (21050, 959210), (24125, 836948), (24850, 812530), (27020, 747275), (27406, 736750), (29470, 685150), (29891, 675500), (33775, 597820), (35500, 568771), (42100, 479605), (48250, 418474), (49700, 406265), (52625, 383684), (54812, 368375), (58940, 342575), (59782, 337750), (62125, 325012), (67550, 298910), (68515, 294700), (73675, 274060), (81253, 248500), (95921, 210500), (96500, 209237), (105250, 191842), (119564, 168875), (124250, 162506), (135100, 149455), (137030, 147350)]