20728920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172741}}^1$

素因数の和:172755

約数の個数: 32

約数和(自身を含む): 62187120

約数和(自身を除く): 41458200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172741, 345482, 518223, 690964, 863705, 1036446, 1381928, 1727410, 2072892, 2591115, 3454820, 4145784, 5182230, 6909640, 10364460, 20728920]

約数ペア:

[(1, 20728920), (2, 10364460), (3, 6909640), (4, 5182230), (5, 4145784), (6, 3454820), (8, 2591115), (10, 2072892), (12, 1727410), (15, 1381928), (20, 1036446), (24, 863705), (30, 690964), (40, 518223), (60, 345482), (120, 172741)]