20457420900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1\times {\mathrm{839}}^1$

素因数の和:1563

約数の個数: 288

約数和(自身を含む): 71815403520

約数和(自身を除く): 51357982620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 25, 28, 30, 34, 35, 42, 50, 51, 60, 68, 70, 75, 84, 85, 100, 102, 105, 119, 140, 150, 170, 175, 204, 210, 238, 255, 300, 340, 350, 357, 420, 425, 476, 510, 525, 595, 683, 700, 714, 839, 850, 1020, 1050, 1190, 1275, 1366, 1428, 1678, 1700, 1785, 2049, 2100, 2380, 2517, 2550, 2732, 2975, 3356, 3415, 3570, 4098, 4195, 4781, 5034, 5100, 5873, 5950, 6830, 7140, 8196, 8390, 8925, 9562, 10068, 10245, 11611, 11746, 11900, 12585, 13660, 14263, 14343, 16780, 17075, 17619, 17850, 19124, 20490, 20975, 23222, 23492, 23905, 25170, 28526, 28686, 29365, 34150, 34833, 35238, 35700, 40980, 41950, 42789, 46444, 47810, 50340, 51225, 57052, 57372, 58055, 58730, 62925, 68300, 69666, 70476, 71315, 71715, 81277, 83900, 85578, 88095, 95620, 99841, 102450, 116110, 117460, 119525, 125850, 139332, 142630, 143430, 146825, 162554, 171156, 174165, 176190, 199682, 204900, 213945, 232220, 239050, 243831, 251700, 285260, 286860, 290275, 293650, 299523, 325108, 348330, 352380, 356575, 358575, 399364, 406385, 427890, 440475, 478100, 487662, 499205, 573037, 580550, 587300, 599046, 696660, 713150, 717150, 812770, 855780, 870825, 880950, 975324, 998410, 1069725, 1146074, 1161100, 1198092, 1219155, 1426300, 1434300, 1497615, 1625540, 1719111, 1741650, 1761900, 1996820, 2031925, 2139450, 2292148, 2438310, 2496025, 2865185, 2995230, 3438222, 3483300, 4011259, 4063850, 4278900, 4876620, 4992050, 5730370, 5990460, 6095775, 6876444, 7488075, 8022518, 8127700, 8595555, 9741629, 9984100, 11460740, 12033777, 12191550, 14325925, 14976150, 16045036, 17191110, 19483258, 20056295, 24067554, 24383100, 28651850, 29224887, 29952300, 34382220, 38966516, 40112590, 42977775, 48135108, 48708145, 57303700, 58449774, 60168885, 68191403, 80225180, 85955550, 97416290, 100281475, 116899548, 120337770, 136382806, 146124435, 171911100, 194832580, 200562950, 204574209, 240675540, 243540725, 272765612, 292248870, 300844425, 340957015, 401125900, 409148418, 487081450, 584497740, 601688850, 681914030, 730622175, 818296836, 974162900, 1022871045, 1203377700, 1363828060, 1461244350, 1704785075, 2045742090, 2922488700, 3409570150, 4091484180, 5114355225, 6819140300, 10228710450, 20457420900]

約数ペア:

[(1, 20457420900), (2, 10228710450), (3, 6819140300), (4, 5114355225), (5, 4091484180), (6, 3409570150), (7, 2922488700), (10, 2045742090), (12, 1704785075), (14, 1461244350), (15, 1363828060), (17, 1203377700), (20, 1022871045), (21, 974162900), (25, 818296836), (28, 730622175), (30, 681914030), (34, 601688850), (35, 584497740), (42, 487081450), (50, 409148418), (51, 401125900), (60, 340957015), (68, 300844425), (70, 292248870), (75, 272765612), (84, 243540725), (85, 240675540), (100, 204574209), (102, 200562950), (105, 194832580), (119, 171911100), (140, 146124435), (150, 136382806), (170, 120337770), (175, 116899548), (204, 100281475), (210, 97416290), (238, 85955550), (255, 80225180), (300, 68191403), (340, 60168885), (350, 58449774), (357, 57303700), (420, 48708145), (425, 48135108), (476, 42977775), (510, 40112590), (525, 38966516), (595, 34382220), (683, 29952300), (700, 29224887), (714, 28651850), (839, 24383100), (850, 24067554), (1020, 20056295), (1050, 19483258), (1190, 17191110), (1275, 16045036), (1366, 14976150), (1428, 14325925), (1678, 12191550), (1700, 12033777), (1785, 11460740), (2049, 9984100), (2100, 9741629), (2380, 8595555), (2517, 8127700), (2550, 8022518), (2732, 7488075), (2975, 6876444), (3356, 6095775), (3415, 5990460), (3570, 5730370), (4098, 4992050), (4195, 4876620), (4781, 4278900), (5034, 4063850), (5100, 4011259), (5873, 3483300), (5950, 3438222), (6830, 2995230), (7140, 2865185), (8196, 2496025), (8390, 2438310), (8925, 2292148), (9562, 2139450), (10068, 2031925), (10245, 1996820), (11611, 1761900), (11746, 1741650), (11900, 1719111), (12585, 1625540), (13660, 1497615), (14263, 1434300), (14343, 1426300), (16780, 1219155), (17075, 1198092), (17619, 1161100), (17850, 1146074), (19124, 1069725), (20490, 998410), (20975, 975324), (23222, 880950), (23492, 870825), (23905, 855780), (25170, 812770), (28526, 717150), (28686, 713150), (29365, 696660), (34150, 599046), (34833, 587300), (35238, 580550), (35700, 573037), (40980, 499205), (41950, 487662), (42789, 478100), (46444, 440475), (47810, 427890), (50340, 406385), (51225, 399364), (57052, 358575), (57372, 356575), (58055, 352380), (58730, 348330), (62925, 325108), (68300, 299523), (69666, 293650), (70476, 290275), (71315, 286860), (71715, 285260), (81277, 251700), (83900, 243831), (85578, 239050), (88095, 232220), (95620, 213945), (99841, 204900), (102450, 199682), (116110, 176190), (117460, 174165), (119525, 171156), (125850, 162554), (139332, 146825), (142630, 143430)]