261765910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{42017}}^1$

素因数の和:42120

約数の個数: 32

約数和(自身を含む): 544553280

約数和(自身を除く): 282787370

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 6230, 42017, 84034, 210085, 294119, 420170, 588238, 1470595, 2941190, 3739513, 7479026, 18697565, 26176591, 37395130, 52353182, 130882955, 261765910]

約数ペア:

[(1, 261765910), (2, 130882955), (5, 52353182), (7, 37395130), (10, 26176591), (14, 18697565), (35, 7479026), (70, 3739513), (89, 2941190), (178, 1470595), (445, 588238), (623, 420170), (890, 294119), (1246, 210085), (3115, 84034), (6230, 42017)]