5117440

素因数分解:

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

素因数の和:2022

約数の個数: 40

約数和(自身を含む): 12276000

約数和(自身を除く): 7158560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 1999, 2560, 3998, 7996, 9995, 15992, 19990, 31984, 39980, 63968, 79960, 127936, 159920, 255872, 319840, 511744, 639680, 1023488, 1279360, 2558720, 5117440]

約数ペア:

[(1, 5117440), (2, 2558720), (4, 1279360), (5, 1023488), (8, 639680), (10, 511744), (16, 319840), (20, 255872), (32, 159920), (40, 127936), (64, 79960), (80, 63968), (128, 39980), (160, 31984), (256, 19990), (320, 15992), (512, 9995), (640, 7996), (1280, 3998), (1999, 2560)]