86706920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{50411}}^1$

素因数の和:50465

約数の個数: 32

約数和(自身を含む): 199631520

約数和(自身を除く): 112924600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 50411, 100822, 201644, 252055, 403288, 504110, 1008220, 2016440, 2167673, 4335346, 8670692, 10838365, 17341384, 21676730, 43353460, 86706920]

約数ペア:

[(1, 86706920), (2, 43353460), (4, 21676730), (5, 17341384), (8, 10838365), (10, 8670692), (20, 4335346), (40, 2167673), (43, 2016440), (86, 1008220), (172, 504110), (215, 403288), (344, 252055), (430, 201644), (860, 100822), (1720, 50411)]