3198400

素因数分解:

$2^6\times 5^2\times {\mathrm{1999}}^1$

素因数の和:2021

約数の個数: 42

約数和(自身を含む): 7874000

約数和(自身を除く): 4675600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 1999, 3998, 7996, 9995, 15992, 19990, 31984, 39980, 49975, 63968, 79960, 99950, 127936, 159920, 199900, 319840, 399800, 639680, 799600, 1599200, 3198400]

約数ペア:

[(1, 3198400), (2, 1599200), (4, 799600), (5, 639680), (8, 399800), (10, 319840), (16, 199900), (20, 159920), (25, 127936), (32, 99950), (40, 79960), (50, 63968), (64, 49975), (80, 39980), (100, 31984), (160, 19990), (200, 15992), (320, 9995), (400, 7996), (800, 3998), (1600, 1999)]