1019968000

素因数分解:

$2^9\times 5^3\times {\mathrm{15937}}^1$

素因数の和:15970

約数の個数: 80

約数和(自身を含む): 2543513544

約数和(自身を除く): 1523545544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 640, 800, 1000, 1280, 1600, 2000, 2560, 3200, 4000, 6400, 8000, 12800, 15937, 16000, 31874, 32000, 63748, 64000, 79685, 127496, 159370, 254992, 318740, 398425, 509984, 637480, 796850, 1019968, 1274960, 1593700, 1992125, 2039936, 2549920, 3187400, 3984250, 4079872, 5099840, 6374800, 7968500, 8159744, 10199680, 12749600, 15937000, 20399360, 25499200, 31874000, 40798720, 50998400, 63748000, 101996800, 127496000, 203993600, 254992000, 509984000, 1019968000]

約数ペア:

[(1, 1019968000), (2, 509984000), (4, 254992000), (5, 203993600), (8, 127496000), (10, 101996800), (16, 63748000), (20, 50998400), (25, 40798720), (32, 31874000), (40, 25499200), (50, 20399360), (64, 15937000), (80, 12749600), (100, 10199680), (125, 8159744), (128, 7968500), (160, 6374800), (200, 5099840), (250, 4079872), (256, 3984250), (320, 3187400), (400, 2549920), (500, 2039936), (512, 1992125), (640, 1593700), (800, 1274960), (1000, 1019968), (1280, 796850), (1600, 637480), (2000, 509984), (2560, 398425), (3200, 318740), (4000, 254992), (6400, 159370), (8000, 127496), (12800, 79685), (15937, 64000), (16000, 63748), (31874, 32000)]