1996800

素因数分解:

$2^{11}\times 3^1\times 5^2\times {\mathrm{13}}^1$

素因数の和:48

約数の個数: 144

約数和(自身を含む): 7108920

約数和(自身を除く): 5112120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 75, 78, 80, 96, 100, 104, 120, 128, 130, 150, 156, 160, 192, 195, 200, 208, 240, 256, 260, 300, 312, 320, 325, 384, 390, 400, 416, 480, 512, 520, 600, 624, 640, 650, 768, 780, 800, 832, 960, 975, 1024, 1040, 1200, 1248, 1280, 1300, 1536, 1560, 1600, 1664, 1920, 1950, 2048, 2080, 2400, 2496, 2560, 2600, 3072, 3120, 3200, 3328, 3840, 3900, 4160, 4800, 4992, 5120, 5200, 6144, 6240, 6400, 6656, 7680, 7800, 8320, 9600, 9984, 10240, 10400, 12480, 12800, 13312, 15360, 15600, 16640, 19200, 19968, 20800, 24960, 25600, 26624, 30720, 31200, 33280, 38400, 39936, 41600, 49920, 51200, 62400, 66560, 76800, 79872, 83200, 99840, 124800, 133120, 153600, 166400, 199680, 249600, 332800, 399360, 499200, 665600, 998400, 1996800]

約数ペア:

[(1, 1996800), (2, 998400), (3, 665600), (4, 499200), (5, 399360), (6, 332800), (8, 249600), (10, 199680), (12, 166400), (13, 153600), (15, 133120), (16, 124800), (20, 99840), (24, 83200), (25, 79872), (26, 76800), (30, 66560), (32, 62400), (39, 51200), (40, 49920), (48, 41600), (50, 39936), (52, 38400), (60, 33280), (64, 31200), (65, 30720), (75, 26624), (78, 25600), (80, 24960), (96, 20800), (100, 19968), (104, 19200), (120, 16640), (128, 15600), (130, 15360), (150, 13312), (156, 12800), (160, 12480), (192, 10400), (195, 10240), (200, 9984), (208, 9600), (240, 8320), (256, 7800), (260, 7680), (300, 6656), (312, 6400), (320, 6240), (325, 6144), (384, 5200), (390, 5120), (400, 4992), (416, 4800), (480, 4160), (512, 3900), (520, 3840), (600, 3328), (624, 3200), (640, 3120), (650, 3072), (768, 2600), (780, 2560), (800, 2496), (832, 2400), (960, 2080), (975, 2048), (1024, 1950), (1040, 1920), (1200, 1664), (1248, 1600), (1280, 1560), (1300, 1536)]