21127209800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:564

約数の個数: 192

約数和(自身を含む): 51748094160

約数和(自身を除く): 30620884360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 53, 82, 100, 106, 164, 173, 200, 205, 212, 265, 281, 328, 346, 410, 424, 530, 562, 692, 820, 865, 1025, 1060, 1124, 1325, 1384, 1405, 1640, 1730, 2050, 2120, 2173, 2248, 2650, 2810, 3460, 4100, 4325, 4346, 5300, 5620, 6920, 7025, 7093, 8200, 8650, 8692, 9169, 10600, 10865, 11240, 11521, 14050, 14186, 14893, 17300, 17384, 18338, 21730, 23042, 28100, 28372, 29786, 34600, 35465, 36676, 43460, 45845, 46084, 48613, 54325, 56200, 56744, 57605, 59572, 70930, 73352, 74465, 86920, 91690, 92168, 97226, 108650, 115210, 119144, 141860, 148930, 177325, 183380, 194452, 217300, 229225, 230420, 243065, 283720, 288025, 297860, 354650, 366760, 372325, 375929, 388904, 434600, 458450, 460840, 486130, 576050, 595720, 610613, 709300, 744650, 751858, 916900, 972260, 1152100, 1215325, 1221226, 1418600, 1489300, 1503716, 1833800, 1879645, 1944520, 1993133, 2304200, 2430650, 2442452, 2576489, 2978600, 3007432, 3053065, 3759290, 3986266, 4861300, 4884904, 5152978, 6106130, 7518580, 7972532, 9398225, 9722600, 9965665, 10305956, 12212260, 12882445, 15037160, 15265325, 15945064, 18796450, 19931330, 20611912, 24424520, 25764890, 30530650, 37592900, 39862660, 49828325, 51529780, 61061300, 64412225, 75185800, 79725320, 99656650, 103059560, 105636049, 122122600, 128824450, 199313300, 211272098, 257648900, 398626600, 422544196, 515297800, 528180245, 845088392, 1056360490, 2112720980, 2640901225, 4225441960, 5281802450, 10563604900, 21127209800]

約数ペア:

[(1, 21127209800), (2, 10563604900), (4, 5281802450), (5, 4225441960), (8, 2640901225), (10, 2112720980), (20, 1056360490), (25, 845088392), (40, 528180245), (41, 515297800), (50, 422544196), (53, 398626600), (82, 257648900), (100, 211272098), (106, 199313300), (164, 128824450), (173, 122122600), (200, 105636049), (205, 103059560), (212, 99656650), (265, 79725320), (281, 75185800), (328, 64412225), (346, 61061300), (410, 51529780), (424, 49828325), (530, 39862660), (562, 37592900), (692, 30530650), (820, 25764890), (865, 24424520), (1025, 20611912), (1060, 19931330), (1124, 18796450), (1325, 15945064), (1384, 15265325), (1405, 15037160), (1640, 12882445), (1730, 12212260), (2050, 10305956), (2120, 9965665), (2173, 9722600), (2248, 9398225), (2650, 7972532), (2810, 7518580), (3460, 6106130), (4100, 5152978), (4325, 4884904), (4346, 4861300), (5300, 3986266), (5620, 3759290), (6920, 3053065), (7025, 3007432), (7093, 2978600), (8200, 2576489), (8650, 2442452), (8692, 2430650), (9169, 2304200), (10600, 1993133), (10865, 1944520), (11240, 1879645), (11521, 1833800), (14050, 1503716), (14186, 1489300), (14893, 1418600), (17300, 1221226), (17384, 1215325), (18338, 1152100), (21730, 972260), (23042, 916900), (28100, 751858), (28372, 744650), (29786, 709300), (34600, 610613), (35465, 595720), (36676, 576050), (43460, 486130), (45845, 460840), (46084, 458450), (48613, 434600), (54325, 388904), (56200, 375929), (56744, 372325), (57605, 366760), (59572, 354650), (70930, 297860), (73352, 288025), (74465, 283720), (86920, 243065), (91690, 230420), (92168, 229225), (97226, 217300), (108650, 194452), (115210, 183380), (119144, 177325), (141860, 148930)]