156947320

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{19717}}^1$

素因数の和:19927

約数の個数: 32

約数和(自身を含む): 354924000

約数和(自身を除く): 197976680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 19717, 39434, 78868, 98585, 157736, 197170, 394340, 788680, 3923683, 7847366, 15694732, 19618415, 31389464, 39236830, 78473660, 156947320]

約数ペア:

[(1, 156947320), (2, 78473660), (4, 39236830), (5, 31389464), (8, 19618415), (10, 15694732), (20, 7847366), (40, 3923683), (199, 788680), (398, 394340), (796, 197170), (995, 157736), (1592, 98585), (1990, 78868), (3980, 39434), (7960, 19717)]