85243640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{10709}}^1$

素因数の和:10919

約数の個数: 32

約数和(自身を含む): 192780000

約数和(自身を除く): 107536360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 10709, 21418, 42836, 53545, 85672, 107090, 214180, 428360, 2131091, 4262182, 8524364, 10655455, 17048728, 21310910, 42621820, 85243640]

約数ペア:

[(1, 85243640), (2, 42621820), (4, 21310910), (5, 17048728), (8, 10655455), (10, 8524364), (20, 4262182), (40, 2131091), (199, 428360), (398, 214180), (796, 107090), (995, 85672), (1592, 53545), (1990, 42836), (3980, 21418), (7960, 10709)]