1306520

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{367}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 2980800

約数和(自身を除く): 1674280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 367, 445, 712, 734, 890, 1468, 1780, 1835, 2936, 3560, 3670, 7340, 14680, 32663, 65326, 130652, 163315, 261304, 326630, 653260, 1306520]

約数ペア:

[(1, 1306520), (2, 653260), (4, 326630), (5, 261304), (8, 163315), (10, 130652), (20, 65326), (40, 32663), (89, 14680), (178, 7340), (356, 3670), (367, 3560), (445, 2936), (712, 1835), (734, 1780), (890, 1468)]