71809380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{398941}}^1$

素因数の和:398956

約数の個数: 36

約数和(自身を含む): 217822332

約数和(自身を除く): 146012952

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 398941, 797882, 1196823, 1595764, 1994705, 2393646, 3590469, 3989410, 4787292, 5984115, 7180938, 7978820, 11968230, 14361876, 17952345, 23936460, 35904690, 71809380]

約数ペア:

[(1, 71809380), (2, 35904690), (3, 23936460), (4, 17952345), (5, 14361876), (6, 11968230), (9, 7978820), (10, 7180938), (12, 5984115), (15, 4787292), (18, 3989410), (20, 3590469), (30, 2393646), (36, 1994705), (45, 1595764), (60, 1196823), (90, 797882), (180, 398941)]