12455140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{7883}}^1$

素因数の和:7971

約数の個数: 24

約数和(自身を含む): 26490240

約数和(自身を除く): 14035100

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 7883, 15766, 31532, 39415, 78830, 157660, 622757, 1245514, 2491028, 3113785, 6227570, 12455140]

約数ペア:

[(1, 12455140), (2, 6227570), (4, 3113785), (5, 2491028), (10, 1245514), (20, 622757), (79, 157660), (158, 78830), (316, 39415), (395, 31532), (790, 15766), (1580, 7883)]