20481600

素因数分解:

$2^6\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:293

約数の個数: 168

約数和(自身を含む): 71432928

約数和(自身を除く): 50951328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 32, 34, 40, 48, 50, 51, 60, 64, 68, 75, 80, 85, 96, 100, 102, 120, 136, 150, 160, 170, 192, 200, 204, 240, 251, 255, 272, 300, 320, 340, 400, 408, 425, 480, 502, 510, 544, 600, 680, 753, 800, 816, 850, 960, 1004, 1020, 1088, 1200, 1255, 1275, 1360, 1506, 1600, 1632, 1700, 2008, 2040, 2400, 2510, 2550, 2720, 3012, 3264, 3400, 3765, 4016, 4080, 4267, 4800, 5020, 5100, 5440, 6024, 6275, 6800, 7530, 8032, 8160, 8534, 10040, 10200, 12048, 12550, 12801, 13600, 15060, 16064, 16320, 17068, 18825, 20080, 20400, 21335, 24096, 25100, 25602, 27200, 30120, 34136, 37650, 40160, 40800, 42670, 48192, 50200, 51204, 60240, 64005, 68272, 75300, 80320, 81600, 85340, 100400, 102408, 106675, 120480, 128010, 136544, 150600, 170680, 200800, 204816, 213350, 240960, 256020, 273088, 301200, 320025, 341360, 401600, 409632, 426700, 512040, 602400, 640050, 682720, 819264, 853400, 1024080, 1204800, 1280100, 1365440, 1706800, 2048160, 2560200, 3413600, 4096320, 5120400, 6827200, 10240800, 20481600]

約数ペア:

[(1, 20481600), (2, 10240800), (3, 6827200), (4, 5120400), (5, 4096320), (6, 3413600), (8, 2560200), (10, 2048160), (12, 1706800), (15, 1365440), (16, 1280100), (17, 1204800), (20, 1024080), (24, 853400), (25, 819264), (30, 682720), (32, 640050), (34, 602400), (40, 512040), (48, 426700), (50, 409632), (51, 401600), (60, 341360), (64, 320025), (68, 301200), (75, 273088), (80, 256020), (85, 240960), (96, 213350), (100, 204816), (102, 200800), (120, 170680), (136, 150600), (150, 136544), (160, 128010), (170, 120480), (192, 106675), (200, 102408), (204, 100400), (240, 85340), (251, 81600), (255, 80320), (272, 75300), (300, 68272), (320, 64005), (340, 60240), (400, 51204), (408, 50200), (425, 48192), (480, 42670), (502, 40800), (510, 40160), (544, 37650), (600, 34136), (680, 30120), (753, 27200), (800, 25602), (816, 25100), (850, 24096), (960, 21335), (1004, 20400), (1020, 20080), (1088, 18825), (1200, 17068), (1255, 16320), (1275, 16064), (1360, 15060), (1506, 13600), (1600, 12801), (1632, 12550), (1700, 12048), (2008, 10200), (2040, 10040), (2400, 8534), (2510, 8160), (2550, 8032), (2720, 7530), (3012, 6800), (3264, 6275), (3400, 6024), (3765, 5440), (4016, 5100), (4080, 5020), (4267, 4800)]