217648640

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:224

約数の個数: 160

約数和(自身を含む): 583355520

約数和(自身を除く): 365706880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 59, 64, 80, 88, 110, 118, 128, 131, 160, 176, 220, 236, 256, 262, 295, 320, 352, 440, 472, 512, 524, 590, 640, 649, 655, 704, 880, 944, 1048, 1180, 1280, 1298, 1310, 1408, 1441, 1760, 1888, 2096, 2360, 2560, 2596, 2620, 2816, 2882, 3245, 3520, 3776, 4192, 4720, 5192, 5240, 5632, 5764, 6490, 7040, 7205, 7552, 7729, 8384, 9440, 10384, 10480, 11528, 12980, 14080, 14410, 15104, 15458, 16768, 18880, 20768, 20960, 23056, 25960, 28160, 28820, 30208, 30916, 33536, 37760, 38645, 41536, 41920, 46112, 51920, 57640, 61832, 67072, 75520, 77290, 83072, 83840, 85019, 92224, 103840, 115280, 123664, 151040, 154580, 166144, 167680, 170038, 184448, 207680, 230560, 247328, 309160, 332288, 335360, 340076, 368896, 415360, 425095, 461120, 494656, 618320, 680152, 737792, 830720, 850190, 922240, 989312, 1236640, 1360304, 1661440, 1700380, 1844480, 1978624, 2473280, 2720608, 3400760, 3688960, 3957248, 4946560, 5441216, 6801520, 9893120, 10882432, 13603040, 19786240, 21764864, 27206080, 43529728, 54412160, 108824320, 217648640]

約数ペア:

[(1, 217648640), (2, 108824320), (4, 54412160), (5, 43529728), (8, 27206080), (10, 21764864), (11, 19786240), (16, 13603040), (20, 10882432), (22, 9893120), (32, 6801520), (40, 5441216), (44, 4946560), (55, 3957248), (59, 3688960), (64, 3400760), (80, 2720608), (88, 2473280), (110, 1978624), (118, 1844480), (128, 1700380), (131, 1661440), (160, 1360304), (176, 1236640), (220, 989312), (236, 922240), (256, 850190), (262, 830720), (295, 737792), (320, 680152), (352, 618320), (440, 494656), (472, 461120), (512, 425095), (524, 415360), (590, 368896), (640, 340076), (649, 335360), (655, 332288), (704, 309160), (880, 247328), (944, 230560), (1048, 207680), (1180, 184448), (1280, 170038), (1298, 167680), (1310, 166144), (1408, 154580), (1441, 151040), (1760, 123664), (1888, 115280), (2096, 103840), (2360, 92224), (2560, 85019), (2596, 83840), (2620, 83072), (2816, 77290), (2882, 75520), (3245, 67072), (3520, 61832), (3776, 57640), (4192, 51920), (4720, 46112), (5192, 41920), (5240, 41536), (5632, 38645), (5764, 37760), (6490, 33536), (7040, 30916), (7205, 30208), (7552, 28820), (7729, 28160), (8384, 25960), (9440, 23056), (10384, 20960), (10480, 20768), (11528, 18880), (12980, 16768), (14080, 15458), (14410, 15104)]