28772420

素因数分解:

$2^2\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1667}}^1$

素因数の和:2539

約数の個数: 24

約数和(自身を含む): 60528384

約数和(自身を除く): 31755964

約数列:

[1, 2, 4, 5, 10, 20, 863, 1667, 1726, 3334, 3452, 4315, 6668, 8335, 8630, 16670, 17260, 33340, 1438621, 2877242, 5754484, 7193105, 14386210, 28772420]

約数ペア:

[(1, 28772420), (2, 14386210), (4, 7193105), (5, 5754484), (10, 2877242), (20, 1438621), (863, 33340), (1667, 17260), (1726, 16670), (3334, 8630), (3452, 8335), (4315, 6668)]