8509240

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1069}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 19260000

約数和(自身を除く): 10750760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1069, 1592, 1990, 2138, 3980, 4276, 5345, 7960, 8552, 10690, 21380, 42760, 212731, 425462, 850924, 1063655, 1701848, 2127310, 4254620, 8509240]

約数ペア:

[(1, 8509240), (2, 4254620), (4, 2127310), (5, 1701848), (8, 1063655), (10, 850924), (20, 425462), (40, 212731), (199, 42760), (398, 21380), (796, 10690), (995, 8552), (1069, 7960), (1592, 5345), (1990, 4276), (2138, 3980)]