63978500

素因数分解:

$2^2\times 5^3\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:861

約数の個数: 48

約数和(自身を含む): 140649600

約数和(自身を除く): 76671100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 199, 250, 398, 500, 643, 796, 995, 1286, 1990, 2572, 3215, 3980, 4975, 6430, 9950, 12860, 16075, 19900, 24875, 32150, 49750, 64300, 80375, 99500, 127957, 160750, 255914, 321500, 511828, 639785, 1279570, 2559140, 3198925, 6397850, 12795700, 15994625, 31989250, 63978500]

約数ペア:

[(1, 63978500), (2, 31989250), (4, 15994625), (5, 12795700), (10, 6397850), (20, 3198925), (25, 2559140), (50, 1279570), (100, 639785), (125, 511828), (199, 321500), (250, 255914), (398, 160750), (500, 127957), (643, 99500), (796, 80375), (995, 64300), (1286, 49750), (1990, 32150), (2572, 24875), (3215, 19900), (3980, 16075), (4975, 12860), (6430, 9950)]