88784860

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 190159200

約数和(自身を除く): 101374340

約数列:

[1, 2, 4, 5, 10, 20, 109, 139, 218, 278, 293, 436, 545, 556, 586, 695, 1090, 1172, 1390, 1465, 2180, 2780, 2930, 5860, 15151, 30302, 31937, 40727, 60604, 63874, 75755, 81454, 127748, 151510, 159685, 162908, 203635, 303020, 319370, 407270, 638740, 814540, 4439243, 8878486, 17756972, 22196215, 44392430, 88784860]

約数ペア:

[(1, 88784860), (2, 44392430), (4, 22196215), (5, 17756972), (10, 8878486), (20, 4439243), (109, 814540), (139, 638740), (218, 407270), (278, 319370), (293, 303020), (436, 203635), (545, 162908), (556, 159685), (586, 151510), (695, 127748), (1090, 81454), (1172, 75755), (1390, 63874), (1465, 60604), (2180, 40727), (2780, 31937), (2930, 30302), (5860, 15151)]