5245640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{659}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 11880000

約数和(自身を除く): 6634360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 659, 796, 995, 1318, 1592, 1990, 2636, 3295, 3980, 5272, 6590, 7960, 13180, 26360, 131141, 262282, 524564, 655705, 1049128, 1311410, 2622820, 5245640]

約数ペア:

[(1, 5245640), (2, 2622820), (4, 1311410), (5, 1049128), (8, 655705), (10, 524564), (20, 262282), (40, 131141), (199, 26360), (398, 13180), (659, 7960), (796, 6590), (995, 5272), (1318, 3980), (1592, 3295), (1990, 2636)]