81970240

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:141

約数の個数: 168

約数和(自身を含む): 224988120

約数和(自身を除く): 143017880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 73, 80, 88, 110, 116, 121, 145, 146, 160, 176, 220, 232, 242, 290, 292, 319, 320, 352, 365, 440, 464, 484, 580, 584, 605, 638, 704, 730, 803, 880, 928, 968, 1160, 1168, 1210, 1276, 1460, 1595, 1606, 1760, 1856, 1936, 2117, 2320, 2336, 2420, 2552, 2920, 3190, 3212, 3509, 3520, 3872, 4015, 4234, 4640, 4672, 4840, 5104, 5840, 6380, 6424, 7018, 7744, 8030, 8468, 8833, 9280, 9680, 10208, 10585, 11680, 12760, 12848, 14036, 16060, 16936, 17545, 17666, 19360, 20416, 21170, 23287, 23360, 25520, 25696, 28072, 32120, 33872, 35090, 35332, 38720, 42340, 44165, 46574, 51040, 51392, 56144, 64240, 67744, 70180, 70664, 84680, 88330, 93148, 102080, 112288, 116435, 128480, 135488, 140360, 141328, 169360, 176660, 186296, 224576, 232870, 256157, 256960, 280720, 282656, 338720, 353320, 372592, 465740, 512314, 561440, 565312, 677440, 706640, 745184, 931480, 1024628, 1122880, 1280785, 1413280, 1490368, 1862960, 2049256, 2561570, 2826560, 3725920, 4098512, 5123140, 7451840, 8197024, 10246280, 16394048, 20492560, 40985120, 81970240]

約数ペア:

[(1, 81970240), (2, 40985120), (4, 20492560), (5, 16394048), (8, 10246280), (10, 8197024), (11, 7451840), (16, 5123140), (20, 4098512), (22, 3725920), (29, 2826560), (32, 2561570), (40, 2049256), (44, 1862960), (55, 1490368), (58, 1413280), (64, 1280785), (73, 1122880), (80, 1024628), (88, 931480), (110, 745184), (116, 706640), (121, 677440), (145, 565312), (146, 561440), (160, 512314), (176, 465740), (220, 372592), (232, 353320), (242, 338720), (290, 282656), (292, 280720), (319, 256960), (320, 256157), (352, 232870), (365, 224576), (440, 186296), (464, 176660), (484, 169360), (580, 141328), (584, 140360), (605, 135488), (638, 128480), (704, 116435), (730, 112288), (803, 102080), (880, 93148), (928, 88330), (968, 84680), (1160, 70664), (1168, 70180), (1210, 67744), (1276, 64240), (1460, 56144), (1595, 51392), (1606, 51040), (1760, 46574), (1856, 44165), (1936, 42340), (2117, 38720), (2320, 35332), (2336, 35090), (2420, 33872), (2552, 32120), (2920, 28072), (3190, 25696), (3212, 25520), (3509, 23360), (3520, 23287), (3872, 21170), (4015, 20416), (4234, 19360), (4640, 17666), (4672, 17545), (4840, 16936), (5104, 16060), (5840, 14036), (6380, 12848), (6424, 12760), (7018, 11680), (7744, 10585), (8030, 10208), (8468, 9680), (8833, 9280)]