2039920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:649

約数の個数: 40

約数和(自身を含む): 4861296

約数和(自身を除く): 2821376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 593, 688, 860, 1186, 1720, 2372, 2965, 3440, 4744, 5930, 9488, 11860, 23720, 25499, 47440, 50998, 101996, 127495, 203992, 254990, 407984, 509980, 1019960, 2039920]

約数ペア:

[(1, 2039920), (2, 1019960), (4, 509980), (5, 407984), (8, 254990), (10, 203992), (16, 127495), (20, 101996), (40, 50998), (43, 47440), (80, 25499), (86, 23720), (172, 11860), (215, 9488), (344, 5930), (430, 4744), (593, 3440), (688, 2965), (860, 2372), (1186, 1720)]