1256680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 2867400

約数和(自身を除く): 1610720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 353, 356, 445, 706, 712, 890, 1412, 1765, 1780, 2824, 3530, 3560, 7060, 14120, 31417, 62834, 125668, 157085, 251336, 314170, 628340, 1256680]

約数ペア:

[(1, 1256680), (2, 628340), (4, 314170), (5, 251336), (8, 157085), (10, 125668), (20, 62834), (40, 31417), (89, 14120), (178, 7060), (353, 3560), (356, 3530), (445, 2824), (706, 1780), (712, 1765), (890, 1412)]