2039120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:443

約数の個数: 40

約数和(自身を含む): 4821120

約数和(自身を除く): 2782000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 359, 568, 710, 718, 1136, 1420, 1436, 1795, 2840, 2872, 3590, 5680, 5744, 7180, 14360, 25489, 28720, 50978, 101956, 127445, 203912, 254890, 407824, 509780, 1019560, 2039120]

約数ペア:

[(1, 2039120), (2, 1019560), (4, 509780), (5, 407824), (8, 254890), (10, 203912), (16, 127445), (20, 101956), (40, 50978), (71, 28720), (80, 25489), (142, 14360), (284, 7180), (355, 5744), (359, 5680), (568, 3590), (710, 2872), (718, 2840), (1136, 1795), (1420, 1436)]