2556080

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:461

約数の個数: 40

約数和(自身を含む): 6026400

約数和(自身を除く): 3470320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 359, 445, 712, 718, 890, 1424, 1436, 1780, 1795, 2872, 3560, 3590, 5744, 7120, 7180, 14360, 28720, 31951, 63902, 127804, 159755, 255608, 319510, 511216, 639020, 1278040, 2556080]

約数ペア:

[(1, 2556080), (2, 1278040), (4, 639020), (5, 511216), (8, 319510), (10, 255608), (16, 159755), (20, 127804), (40, 63902), (80, 31951), (89, 28720), (178, 14360), (356, 7180), (359, 7120), (445, 5744), (712, 3590), (718, 3560), (890, 2872), (1424, 1795), (1436, 1780)]