5118280

素因数分解:

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

素因数の和:853

約数の個数: 32

約数和(自身を含む): 11592000

約数和(自身を除く): 6473720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 643, 796, 995, 1286, 1592, 1990, 2572, 3215, 3980, 5144, 6430, 7960, 12860, 25720, 127957, 255914, 511828, 639785, 1023656, 1279570, 2559140, 5118280]

約数ペア:

[(1, 5118280), (2, 2559140), (4, 1279570), (5, 1023656), (8, 639785), (10, 511828), (20, 255914), (40, 127957), (199, 25720), (398, 12860), (643, 7960), (796, 6430), (995, 5144), (1286, 3980), (1592, 3215), (1990, 2572)]