12737680

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1789}}^1$

素因数の和:1891

約数の個数: 40

約数和(自身を含む): 29964600

約数和(自身を除く): 17226920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 1789, 3560, 3578, 7120, 7156, 8945, 14312, 17890, 28624, 35780, 71560, 143120, 159221, 318442, 636884, 796105, 1273768, 1592210, 2547536, 3184420, 6368840, 12737680]

約数ペア:

[(1, 12737680), (2, 6368840), (4, 3184420), (5, 2547536), (8, 1592210), (10, 1273768), (16, 796105), (20, 636884), (40, 318442), (80, 159221), (89, 143120), (178, 71560), (356, 35780), (445, 28624), (712, 17890), (890, 14312), (1424, 8945), (1780, 7156), (1789, 7120), (3560, 3578)]