31021280

素因数分解:

$2^5\times 5^1\times {\mathrm{193883}}^1$

素因数の和:193898

約数の個数: 24

約数和(自身を含む): 73288152

約数和(自身を除く): 42266872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 193883, 387766, 775532, 969415, 1551064, 1938830, 3102128, 3877660, 6204256, 7755320, 15510640, 31021280]

約数ペア:

[(1, 31021280), (2, 15510640), (4, 7755320), (5, 6204256), (8, 3877660), (10, 3102128), (16, 1938830), (20, 1551064), (32, 969415), (40, 775532), (80, 387766), (160, 193883)]