390438400

素因数分解:

$2^9\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:145

約数の個数: 240

約数和(自身を含む): 1096001280

約数和(自身を除く): 705562880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 47, 50, 55, 59, 64, 80, 88, 94, 100, 110, 118, 128, 160, 176, 188, 200, 220, 235, 236, 256, 275, 295, 320, 352, 376, 400, 440, 470, 472, 512, 517, 550, 590, 640, 649, 704, 752, 800, 880, 940, 944, 1034, 1100, 1175, 1180, 1280, 1298, 1408, 1475, 1504, 1600, 1760, 1880, 1888, 2068, 2200, 2350, 2360, 2560, 2585, 2596, 2773, 2816, 2950, 3008, 3200, 3245, 3520, 3760, 3776, 4136, 4400, 4700, 4720, 5170, 5192, 5546, 5632, 5900, 6016, 6400, 6490, 7040, 7520, 7552, 8272, 8800, 9400, 9440, 10340, 10384, 11092, 11800, 12032, 12800, 12925, 12980, 13865, 14080, 15040, 15104, 16225, 16544, 17600, 18800, 18880, 20680, 20768, 22184, 23600, 24064, 25850, 25960, 27730, 28160, 30080, 30208, 30503, 32450, 33088, 35200, 37600, 37760, 41360, 41536, 44368, 47200, 51700, 51920, 55460, 60160, 61006, 64900, 66176, 69325, 70400, 75200, 75520, 82720, 83072, 88736, 94400, 103400, 103840, 110920, 120320, 122012, 129800, 132352, 138650, 140800, 150400, 151040, 152515, 165440, 166144, 177472, 188800, 206800, 207680, 221840, 244024, 259600, 264704, 277300, 300800, 305030, 330880, 332288, 354944, 377600, 413600, 415360, 443680, 488048, 519200, 554600, 601600, 610060, 661760, 709888, 755200, 762575, 827200, 830720, 887360, 976096, 1038400, 1109200, 1220120, 1323520, 1419776, 1525150, 1654400, 1661440, 1774720, 1952192, 2076800, 2218400, 2440240, 3050300, 3308800, 3549440, 3904384, 4153600, 4436800, 4880480, 6100600, 6617600, 7098880, 7808768, 8307200, 8873600, 9760960, 12201200, 15617536, 17747200, 19521920, 24402400, 35494400, 39043840, 48804800, 78087680, 97609600, 195219200, 390438400]

約数ペア:

[(1, 390438400), (2, 195219200), (4, 97609600), (5, 78087680), (8, 48804800), (10, 39043840), (11, 35494400), (16, 24402400), (20, 19521920), (22, 17747200), (25, 15617536), (32, 12201200), (40, 9760960), (44, 8873600), (47, 8307200), (50, 7808768), (55, 7098880), (59, 6617600), (64, 6100600), (80, 4880480), (88, 4436800), (94, 4153600), (100, 3904384), (110, 3549440), (118, 3308800), (128, 3050300), (160, 2440240), (176, 2218400), (188, 2076800), (200, 1952192), (220, 1774720), (235, 1661440), (236, 1654400), (256, 1525150), (275, 1419776), (295, 1323520), (320, 1220120), (352, 1109200), (376, 1038400), (400, 976096), (440, 887360), (470, 830720), (472, 827200), (512, 762575), (517, 755200), (550, 709888), (590, 661760), (640, 610060), (649, 601600), (704, 554600), (752, 519200), (800, 488048), (880, 443680), (940, 415360), (944, 413600), (1034, 377600), (1100, 354944), (1175, 332288), (1180, 330880), (1280, 305030), (1298, 300800), (1408, 277300), (1475, 264704), (1504, 259600), (1600, 244024), (1760, 221840), (1880, 207680), (1888, 206800), (2068, 188800), (2200, 177472), (2350, 166144), (2360, 165440), (2560, 152515), (2585, 151040), (2596, 150400), (2773, 140800), (2816, 138650), (2950, 132352), (3008, 129800), (3200, 122012), (3245, 120320), (3520, 110920), (3760, 103840), (3776, 103400), (4136, 94400), (4400, 88736), (4700, 83072), (4720, 82720), (5170, 75520), (5192, 75200), (5546, 70400), (5632, 69325), (5900, 66176), (6016, 64900), (6400, 61006), (6490, 60160), (7040, 55460), (7520, 51920), (7552, 51700), (8272, 47200), (8800, 44368), (9400, 41536), (9440, 41360), (10340, 37760), (10384, 37600), (11092, 35200), (11800, 33088), (12032, 32450), (12800, 30503), (12925, 30208), (12980, 30080), (13865, 28160), (14080, 27730), (15040, 25960), (15104, 25850), (16225, 24064), (16544, 23600), (17600, 22184), (18800, 20768), (18880, 20680)]