20384000

素因数分解:

$2^8\times 5^3\times 7^2\times {\mathrm{13}}^1$

素因数の和:58

約数の個数: 216

約数和(自身を含む): 63613368

約数和(自身を除く): 43229368

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 49, 50, 52, 56, 64, 65, 70, 80, 91, 98, 100, 104, 112, 125, 128, 130, 140, 160, 175, 182, 196, 200, 208, 224, 245, 250, 256, 260, 280, 320, 325, 350, 364, 392, 400, 416, 448, 455, 490, 500, 520, 560, 637, 640, 650, 700, 728, 784, 800, 832, 875, 896, 910, 980, 1000, 1040, 1120, 1225, 1274, 1280, 1300, 1400, 1456, 1568, 1600, 1625, 1664, 1750, 1792, 1820, 1960, 2000, 2080, 2240, 2275, 2450, 2548, 2600, 2800, 2912, 3136, 3185, 3200, 3250, 3328, 3500, 3640, 3920, 4000, 4160, 4480, 4550, 4900, 5096, 5200, 5600, 5824, 6125, 6272, 6370, 6400, 6500, 7000, 7280, 7840, 8000, 8320, 8960, 9100, 9800, 10192, 10400, 11200, 11375, 11648, 12250, 12544, 12740, 13000, 14000, 14560, 15680, 15925, 16000, 16640, 18200, 19600, 20384, 20800, 22400, 22750, 23296, 24500, 25480, 26000, 28000, 29120, 31360, 31850, 32000, 36400, 39200, 40768, 41600, 44800, 45500, 49000, 50960, 52000, 56000, 58240, 62720, 63700, 72800, 78400, 79625, 81536, 83200, 91000, 98000, 101920, 104000, 112000, 116480, 127400, 145600, 156800, 159250, 163072, 182000, 196000, 203840, 208000, 224000, 254800, 291200, 313600, 318500, 364000, 392000, 407680, 416000, 509600, 582400, 637000, 728000, 784000, 815360, 1019200, 1274000, 1456000, 1568000, 2038400, 2548000, 2912000, 4076800, 5096000, 10192000, 20384000]

約数ペア:

[(1, 20384000), (2, 10192000), (4, 5096000), (5, 4076800), (7, 2912000), (8, 2548000), (10, 2038400), (13, 1568000), (14, 1456000), (16, 1274000), (20, 1019200), (25, 815360), (26, 784000), (28, 728000), (32, 637000), (35, 582400), (40, 509600), (49, 416000), (50, 407680), (52, 392000), (56, 364000), (64, 318500), (65, 313600), (70, 291200), (80, 254800), (91, 224000), (98, 208000), (100, 203840), (104, 196000), (112, 182000), (125, 163072), (128, 159250), (130, 156800), (140, 145600), (160, 127400), (175, 116480), (182, 112000), (196, 104000), (200, 101920), (208, 98000), (224, 91000), (245, 83200), (250, 81536), (256, 79625), (260, 78400), (280, 72800), (320, 63700), (325, 62720), (350, 58240), (364, 56000), (392, 52000), (400, 50960), (416, 49000), (448, 45500), (455, 44800), (490, 41600), (500, 40768), (520, 39200), (560, 36400), (637, 32000), (640, 31850), (650, 31360), (700, 29120), (728, 28000), (784, 26000), (800, 25480), (832, 24500), (875, 23296), (896, 22750), (910, 22400), (980, 20800), (1000, 20384), (1040, 19600), (1120, 18200), (1225, 16640), (1274, 16000), (1280, 15925), (1300, 15680), (1400, 14560), (1456, 14000), (1568, 13000), (1600, 12740), (1625, 12544), (1664, 12250), (1750, 11648), (1792, 11375), (1820, 11200), (1960, 10400), (2000, 10192), (2080, 9800), (2240, 9100), (2275, 8960), (2450, 8320), (2548, 8000), (2600, 7840), (2800, 7280), (2912, 7000), (3136, 6500), (3185, 6400), (3200, 6370), (3250, 6272), (3328, 6125), (3500, 5824), (3640, 5600), (3920, 5200), (4000, 5096), (4160, 4900), (4480, 4550)]