81349020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451939}}^1$

素因数の和:451954

約数の個数: 36

約数和(自身を含む): 246759240

約数和(自身を除く): 165410220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451939, 903878, 1355817, 1807756, 2259695, 2711634, 4067451, 4519390, 5423268, 6779085, 8134902, 9038780, 13558170, 16269804, 20337255, 27116340, 40674510, 81349020]

約数ペア:

[(1, 81349020), (2, 40674510), (3, 27116340), (4, 20337255), (5, 16269804), (6, 13558170), (9, 9038780), (10, 8134902), (12, 6779085), (15, 5423268), (18, 4519390), (20, 4067451), (30, 2711634), (36, 2259695), (45, 1807756), (60, 1355817), (90, 903878), (180, 451939)]