20856471680

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{337}}^1$

素因数の和:575

約数の個数: 256

約数和(自身を含む): 55851120000

約数和(自身を除く): 34994648320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 59, 64, 80, 88, 110, 118, 128, 149, 160, 176, 220, 236, 295, 298, 320, 337, 352, 440, 472, 590, 596, 640, 649, 674, 704, 745, 880, 944, 1180, 1192, 1298, 1348, 1408, 1490, 1639, 1685, 1760, 1888, 2360, 2384, 2596, 2696, 2980, 3245, 3278, 3370, 3520, 3707, 3776, 4720, 4768, 5192, 5392, 5960, 6490, 6556, 6740, 7040, 7414, 7552, 8195, 8791, 9440, 9536, 10384, 10784, 11920, 12980, 13112, 13480, 14828, 16390, 17582, 18535, 18880, 19072, 19883, 20768, 21568, 23840, 25960, 26224, 26960, 29656, 32780, 35164, 37070, 37760, 39766, 41536, 43136, 43955, 47680, 50213, 51920, 52448, 53920, 59312, 65560, 70328, 74140, 79532, 83072, 87910, 95360, 96701, 99415, 100426, 103840, 104896, 107840, 118624, 131120, 140656, 148280, 159064, 175820, 193402, 198830, 200852, 207680, 209792, 215680, 218713, 237248, 251065, 262240, 281312, 296560, 318128, 351640, 386804, 397660, 401704, 415360, 437426, 474496, 483505, 502130, 524480, 552343, 562624, 593120, 636256, 703280, 773608, 795320, 803408, 874852, 967010, 1004260, 1048960, 1093565, 1104686, 1125248, 1186240, 1272512, 1406560, 1547216, 1590640, 1606816, 1749704, 1934020, 2008520, 2187130, 2209372, 2372480, 2545024, 2761715, 2813120, 2962567, 3094432, 3181280, 3213632, 3499408, 3868040, 4017040, 4374260, 4418744, 5523430, 5626240, 5925134, 6188864, 6362560, 6427264, 6998816, 7736080, 8034080, 8748520, 8837488, 11046860, 11850268, 12377728, 12725120, 13997632, 14812835, 15472160, 16068160, 17497040, 17674976, 22093720, 23700536, 27995264, 29625670, 30944320, 32136320, 32588237, 34994080, 35349952, 44187440, 47401072, 59251340, 61888640, 65176474, 69988160, 70699904, 88374880, 94802144, 118502680, 130352948, 139976320, 162941185, 176749760, 189604288, 237005360, 260705896, 325882370, 353499520, 379208576, 474010720, 521411792, 651764740, 948021440, 1042823584, 1303529480, 1896042880, 2085647168, 2607058960, 4171294336, 5214117920, 10428235840, 20856471680]

約数ペア:

[(1, 20856471680), (2, 10428235840), (4, 5214117920), (5, 4171294336), (8, 2607058960), (10, 2085647168), (11, 1896042880), (16, 1303529480), (20, 1042823584), (22, 948021440), (32, 651764740), (40, 521411792), (44, 474010720), (55, 379208576), (59, 353499520), (64, 325882370), (80, 260705896), (88, 237005360), (110, 189604288), (118, 176749760), (128, 162941185), (149, 139976320), (160, 130352948), (176, 118502680), (220, 94802144), (236, 88374880), (295, 70699904), (298, 69988160), (320, 65176474), (337, 61888640), (352, 59251340), (440, 47401072), (472, 44187440), (590, 35349952), (596, 34994080), (640, 32588237), (649, 32136320), (674, 30944320), (704, 29625670), (745, 27995264), (880, 23700536), (944, 22093720), (1180, 17674976), (1192, 17497040), (1298, 16068160), (1348, 15472160), (1408, 14812835), (1490, 13997632), (1639, 12725120), (1685, 12377728), (1760, 11850268), (1888, 11046860), (2360, 8837488), (2384, 8748520), (2596, 8034080), (2696, 7736080), (2980, 6998816), (3245, 6427264), (3278, 6362560), (3370, 6188864), (3520, 5925134), (3707, 5626240), (3776, 5523430), (4720, 4418744), (4768, 4374260), (5192, 4017040), (5392, 3868040), (5960, 3499408), (6490, 3213632), (6556, 3181280), (6740, 3094432), (7040, 2962567), (7414, 2813120), (7552, 2761715), (8195, 2545024), (8791, 2372480), (9440, 2209372), (9536, 2187130), (10384, 2008520), (10784, 1934020), (11920, 1749704), (12980, 1606816), (13112, 1590640), (13480, 1547216), (14828, 1406560), (16390, 1272512), (17582, 1186240), (18535, 1125248), (18880, 1104686), (19072, 1093565), (19883, 1048960), (20768, 1004260), (21568, 967010), (23840, 874852), (25960, 803408), (26224, 795320), (26960, 773608), (29656, 703280), (32780, 636256), (35164, 593120), (37070, 562624), (37760, 552343), (39766, 524480), (41536, 502130), (43136, 483505), (43955, 474496), (47680, 437426), (50213, 415360), (51920, 401704), (52448, 397660), (53920, 386804), (59312, 351640), (65560, 318128), (70328, 296560), (74140, 281312), (79532, 262240), (83072, 251065), (87910, 237248), (95360, 218713), (96701, 215680), (99415, 209792), (100426, 207680), (103840, 200852), (104896, 198830), (107840, 193402), (118624, 175820), (131120, 159064), (140656, 148280)]