21506450000

素因数分解:

$2^4\times 5^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1429}}^1$

素因数の和:1512

約数の個数: 240

約数和(自身を含む): 60949848960

約数和(自身を除く): 39443398960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 43, 50, 56, 70, 80, 86, 100, 112, 125, 140, 172, 175, 200, 215, 250, 280, 301, 344, 350, 400, 430, 500, 560, 602, 625, 688, 700, 860, 875, 1000, 1075, 1204, 1250, 1400, 1429, 1505, 1720, 1750, 2000, 2150, 2408, 2500, 2800, 2858, 3010, 3125, 3440, 3500, 4300, 4375, 4816, 5000, 5375, 5716, 6020, 6250, 7000, 7145, 7525, 8600, 8750, 10000, 10003, 10750, 11432, 12040, 12500, 14000, 14290, 15050, 17200, 17500, 20006, 21500, 21875, 22864, 24080, 25000, 26875, 28580, 30100, 35000, 35725, 37625, 40012, 43000, 43750, 50000, 50015, 53750, 57160, 60200, 61447, 70000, 71450, 75250, 80024, 86000, 87500, 100030, 107500, 114320, 120400, 122894, 134375, 142900, 150500, 160048, 175000, 178625, 188125, 200060, 215000, 245788, 250075, 268750, 285800, 301000, 307235, 350000, 357250, 376250, 400120, 430000, 430129, 491576, 500150, 537500, 571600, 602000, 614470, 714500, 752500, 800240, 860258, 893125, 940625, 983152, 1000300, 1075000, 1228940, 1250375, 1429000, 1505000, 1536175, 1720516, 1786250, 1881250, 2000600, 2150000, 2150645, 2457880, 2500750, 2858000, 3010000, 3072350, 3441032, 3572500, 3762500, 4001200, 4301290, 4465625, 4915760, 5001500, 6144700, 6251875, 6882064, 7145000, 7525000, 7680875, 8602580, 8931250, 10003000, 10753225, 12289400, 12503750, 14290000, 15050000, 15361750, 17205160, 17862500, 20006000, 21506450, 24578800, 25007500, 30723500, 31259375, 34410320, 35725000, 38404375, 43012900, 50015000, 53766125, 61447000, 62518750, 71450000, 76808750, 86025800, 100030000, 107532250, 122894000, 125037500, 153617500, 172051600, 192021875, 215064500, 250075000, 268830625, 307235000, 384043750, 430129000, 500150000, 537661250, 614470000, 768087500, 860258000, 1075322500, 1344153125, 1536175000, 2150645000, 2688306250, 3072350000, 4301290000, 5376612500, 10753225000, 21506450000]

約数ペア:

[(1, 21506450000), (2, 10753225000), (4, 5376612500), (5, 4301290000), (7, 3072350000), (8, 2688306250), (10, 2150645000), (14, 1536175000), (16, 1344153125), (20, 1075322500), (25, 860258000), (28, 768087500), (35, 614470000), (40, 537661250), (43, 500150000), (50, 430129000), (56, 384043750), (70, 307235000), (80, 268830625), (86, 250075000), (100, 215064500), (112, 192021875), (125, 172051600), (140, 153617500), (172, 125037500), (175, 122894000), (200, 107532250), (215, 100030000), (250, 86025800), (280, 76808750), (301, 71450000), (344, 62518750), (350, 61447000), (400, 53766125), (430, 50015000), (500, 43012900), (560, 38404375), (602, 35725000), (625, 34410320), (688, 31259375), (700, 30723500), (860, 25007500), (875, 24578800), (1000, 21506450), (1075, 20006000), (1204, 17862500), (1250, 17205160), (1400, 15361750), (1429, 15050000), (1505, 14290000), (1720, 12503750), (1750, 12289400), (2000, 10753225), (2150, 10003000), (2408, 8931250), (2500, 8602580), (2800, 7680875), (2858, 7525000), (3010, 7145000), (3125, 6882064), (3440, 6251875), (3500, 6144700), (4300, 5001500), (4375, 4915760), (4816, 4465625), (5000, 4301290), (5375, 4001200), (5716, 3762500), (6020, 3572500), (6250, 3441032), (7000, 3072350), (7145, 3010000), (7525, 2858000), (8600, 2500750), (8750, 2457880), (10000, 2150645), (10003, 2150000), (10750, 2000600), (11432, 1881250), (12040, 1786250), (12500, 1720516), (14000, 1536175), (14290, 1505000), (15050, 1429000), (17200, 1250375), (17500, 1228940), (20006, 1075000), (21500, 1000300), (21875, 983152), (22864, 940625), (24080, 893125), (25000, 860258), (26875, 800240), (28580, 752500), (30100, 714500), (35000, 614470), (35725, 602000), (37625, 571600), (40012, 537500), (43000, 500150), (43750, 491576), (50000, 430129), (50015, 430000), (53750, 400120), (57160, 376250), (60200, 357250), (61447, 350000), (70000, 307235), (71450, 301000), (75250, 285800), (80024, 268750), (86000, 250075), (87500, 245788), (100030, 215000), (107500, 200060), (114320, 188125), (120400, 178625), (122894, 175000), (134375, 160048), (142900, 150500)]