20161750000

素因数分解:

$2^4\times 5^6\times 7^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:367

約数の個数: 280

約数和(自身を含む): 57368640672

約数和(自身を除く): 37206890672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 41, 50, 56, 70, 80, 82, 100, 112, 125, 140, 164, 175, 200, 205, 250, 280, 281, 287, 328, 350, 400, 410, 500, 560, 562, 574, 625, 656, 700, 820, 875, 1000, 1025, 1124, 1148, 1250, 1400, 1405, 1435, 1640, 1750, 1967, 2000, 2050, 2248, 2296, 2500, 2800, 2810, 2870, 3125, 3280, 3500, 3934, 4100, 4375, 4496, 4592, 5000, 5125, 5620, 5740, 6250, 7000, 7025, 7175, 7868, 8200, 8750, 9835, 10000, 10250, 11240, 11480, 11521, 12500, 14000, 14050, 14350, 15625, 15736, 16400, 17500, 19670, 20500, 21875, 22480, 22960, 23042, 25000, 25625, 28100, 28700, 31250, 31472, 35000, 35125, 35875, 39340, 41000, 43750, 46084, 49175, 50000, 51250, 56200, 57400, 57605, 62500, 70000, 70250, 71750, 78680, 80647, 82000, 87500, 92168, 98350, 102500, 109375, 112400, 114800, 115210, 125000, 128125, 140500, 143500, 157360, 161294, 175000, 175625, 179375, 184336, 196700, 205000, 218750, 230420, 245875, 250000, 256250, 281000, 287000, 288025, 322588, 350000, 351250, 358750, 393400, 403235, 410000, 437500, 460840, 491750, 512500, 562000, 574000, 576050, 640625, 645176, 702500, 717500, 786800, 806470, 875000, 878125, 896875, 921680, 983500, 1025000, 1152100, 1229375, 1281250, 1290352, 1405000, 1435000, 1440125, 1612940, 1750000, 1756250, 1793750, 1967000, 2016175, 2050000, 2304200, 2458750, 2562500, 2810000, 2870000, 2880250, 3225880, 3512500, 3587500, 3934000, 4032350, 4390625, 4484375, 4608400, 4917500, 5125000, 5760500, 6146875, 6451760, 7025000, 7175000, 7200625, 8064700, 8781250, 8968750, 9835000, 10080875, 10250000, 11521000, 12293750, 14050000, 14350000, 14401250, 16129400, 17562500, 17937500, 19670000, 20161750, 23042000, 24587500, 28802500, 30734375, 32258800, 35125000, 35875000, 36003125, 40323500, 49175000, 50404375, 57605000, 61468750, 70250000, 71750000, 72006250, 80647000, 98350000, 100808750, 115210000, 122937500, 144012500, 161294000, 180015625, 201617500, 245875000, 252021875, 288025000, 360031250, 403235000, 491750000, 504043750, 576050000, 720062500, 806470000, 1008087500, 1260109375, 1440125000, 2016175000, 2520218750, 2880250000, 4032350000, 5040437500, 10080875000, 20161750000]

約数ペア:

[(1, 20161750000), (2, 10080875000), (4, 5040437500), (5, 4032350000), (7, 2880250000), (8, 2520218750), (10, 2016175000), (14, 1440125000), (16, 1260109375), (20, 1008087500), (25, 806470000), (28, 720062500), (35, 576050000), (40, 504043750), (41, 491750000), (50, 403235000), (56, 360031250), (70, 288025000), (80, 252021875), (82, 245875000), (100, 201617500), (112, 180015625), (125, 161294000), (140, 144012500), (164, 122937500), (175, 115210000), (200, 100808750), (205, 98350000), (250, 80647000), (280, 72006250), (281, 71750000), (287, 70250000), (328, 61468750), (350, 57605000), (400, 50404375), (410, 49175000), (500, 40323500), (560, 36003125), (562, 35875000), (574, 35125000), (625, 32258800), (656, 30734375), (700, 28802500), (820, 24587500), (875, 23042000), (1000, 20161750), (1025, 19670000), (1124, 17937500), (1148, 17562500), (1250, 16129400), (1400, 14401250), (1405, 14350000), (1435, 14050000), (1640, 12293750), (1750, 11521000), (1967, 10250000), (2000, 10080875), (2050, 9835000), (2248, 8968750), (2296, 8781250), (2500, 8064700), (2800, 7200625), (2810, 7175000), (2870, 7025000), (3125, 6451760), (3280, 6146875), (3500, 5760500), (3934, 5125000), (4100, 4917500), (4375, 4608400), (4496, 4484375), (4592, 4390625), (5000, 4032350), (5125, 3934000), (5620, 3587500), (5740, 3512500), (6250, 3225880), (7000, 2880250), (7025, 2870000), (7175, 2810000), (7868, 2562500), (8200, 2458750), (8750, 2304200), (9835, 2050000), (10000, 2016175), (10250, 1967000), (11240, 1793750), (11480, 1756250), (11521, 1750000), (12500, 1612940), (14000, 1440125), (14050, 1435000), (14350, 1405000), (15625, 1290352), (15736, 1281250), (16400, 1229375), (17500, 1152100), (19670, 1025000), (20500, 983500), (21875, 921680), (22480, 896875), (22960, 878125), (23042, 875000), (25000, 806470), (25625, 786800), (28100, 717500), (28700, 702500), (31250, 645176), (31472, 640625), (35000, 576050), (35125, 574000), (35875, 562000), (39340, 512500), (41000, 491750), (43750, 460840), (46084, 437500), (49175, 410000), (50000, 403235), (51250, 393400), (56200, 358750), (57400, 351250), (57605, 350000), (62500, 322588), (70000, 288025), (70250, 287000), (71750, 281000), (78680, 256250), (80647, 250000), (82000, 245875), (87500, 230420), (92168, 218750), (98350, 205000), (102500, 196700), (109375, 184336), (112400, 179375), (114800, 175625), (115210, 175000), (125000, 161294), (128125, 157360), (140500, 143500)]