145007320

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{18217}}^1$

素因数の和:18427

約数の個数: 32

約数和(自身を含む): 327924000

約数和(自身を除く): 182916680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 18217, 36434, 72868, 91085, 145736, 182170, 364340, 728680, 3625183, 7250366, 14500732, 18125915, 29001464, 36251830, 72503660, 145007320]

約数ペア:

[(1, 145007320), (2, 72503660), (4, 36251830), (5, 29001464), (8, 18125915), (10, 14500732), (20, 7250366), (40, 3625183), (199, 728680), (398, 364340), (796, 182170), (995, 145736), (1592, 91085), (1990, 72868), (3980, 36434), (7960, 18217)]