17939486720

素因数分解:

$2^{11}\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1823}}^1$

素因数の和:1912

約数の個数: 144

約数和(自身を含む): 44501970240

約数和(自身を除く): 26562483520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 961, 992, 1024, 1240, 1280, 1823, 1922, 1984, 2048, 2480, 2560, 3646, 3844, 3968, 4805, 4960, 5120, 7292, 7688, 7936, 9115, 9610, 9920, 10240, 14584, 15376, 15872, 18230, 19220, 19840, 29168, 30752, 31744, 36460, 38440, 39680, 56513, 58336, 61504, 63488, 72920, 76880, 79360, 113026, 116672, 123008, 145840, 153760, 158720, 226052, 233344, 246016, 282565, 291680, 307520, 317440, 452104, 466688, 492032, 565130, 583360, 615040, 904208, 933376, 984064, 1130260, 1166720, 1230080, 1751903, 1808416, 1866752, 1968128, 2260520, 2333440, 2460160, 3503806, 3616832, 3733504, 4521040, 4666880, 4920320, 7007612, 7233664, 8759515, 9042080, 9333760, 9840640, 14015224, 14467328, 17519030, 18084160, 18667520, 28030448, 28934656, 35038060, 36168320, 56060896, 57869312, 70076120, 72336640, 112121792, 115738624, 140152240, 144673280, 224243584, 280304480, 289346560, 448487168, 560608960, 578693120, 896974336, 1121217920, 1793948672, 2242435840, 3587897344, 4484871680, 8969743360, 17939486720]

約数ペア:

[(1, 17939486720), (2, 8969743360), (4, 4484871680), (5, 3587897344), (8, 2242435840), (10, 1793948672), (16, 1121217920), (20, 896974336), (31, 578693120), (32, 560608960), (40, 448487168), (62, 289346560), (64, 280304480), (80, 224243584), (124, 144673280), (128, 140152240), (155, 115738624), (160, 112121792), (248, 72336640), (256, 70076120), (310, 57869312), (320, 56060896), (496, 36168320), (512, 35038060), (620, 28934656), (640, 28030448), (961, 18667520), (992, 18084160), (1024, 17519030), (1240, 14467328), (1280, 14015224), (1823, 9840640), (1922, 9333760), (1984, 9042080), (2048, 8759515), (2480, 7233664), (2560, 7007612), (3646, 4920320), (3844, 4666880), (3968, 4521040), (4805, 3733504), (4960, 3616832), (5120, 3503806), (7292, 2460160), (7688, 2333440), (7936, 2260520), (9115, 1968128), (9610, 1866752), (9920, 1808416), (10240, 1751903), (14584, 1230080), (15376, 1166720), (15872, 1130260), (18230, 984064), (19220, 933376), (19840, 904208), (29168, 615040), (30752, 583360), (31744, 565130), (36460, 492032), (38440, 466688), (39680, 452104), (56513, 317440), (58336, 307520), (61504, 291680), (63488, 282565), (72920, 246016), (76880, 233344), (79360, 226052), (113026, 158720), (116672, 153760), (123008, 145840)]