127936000

素因数分解:

$2^9\times 5^3\times {\mathrm{1999}}^1$

素因数の和:2032

約数の個数: 80

約数和(自身を含む): 319176000

約数和(自身を除く): 191240000

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, 1999, 2000, 2560, 3200, 3998, 4000, 6400, 7996, 8000, 9995, 12800, 15992, 16000, 19990, 31984, 32000, 39980, 49975, 63968, 64000, 79960, 99950, 127936, 159920, 199900, 249875, 255872, 319840, 399800, 499750, 511744, 639680, 799600, 999500, 1023488, 1279360, 1599200, 1999000, 2558720, 3198400, 3998000, 5117440, 6396800, 7996000, 12793600, 15992000, 25587200, 31984000, 63968000, 127936000]

約数ペア:

[(1, 127936000), (2, 63968000), (4, 31984000), (5, 25587200), (8, 15992000), (10, 12793600), (16, 7996000), (20, 6396800), (25, 5117440), (32, 3998000), (40, 3198400), (50, 2558720), (64, 1999000), (80, 1599200), (100, 1279360), (125, 1023488), (128, 999500), (160, 799600), (200, 639680), (250, 511744), (256, 499750), (320, 399800), (400, 319840), (500, 255872), (512, 249875), (640, 199900), (800, 159920), (1000, 127936), (1280, 99950), (1600, 79960), (1999, 64000), (2000, 63968), (2560, 49975), (3200, 39980), (3998, 32000), (4000, 31984), (6400, 19990), (7996, 16000), (8000, 15992), (9995, 12800)]