20700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23}}^1$

素因数の和:43

約数の個数: 54

約数和(自身を含む): 67704

約数和(自身を除く): 47004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 30, 36, 45, 46, 50, 60, 69, 75, 90, 92, 100, 115, 138, 150, 180, 207, 225, 230, 276, 300, 345, 414, 450, 460, 575, 690, 828, 900, 1035, 1150, 1380, 1725, 2070, 2300, 3450, 4140, 5175, 6900, 10350, 20700]

約数ペア:

[(1, 20700), (2, 10350), (3, 6900), (4, 5175), (5, 4140), (6, 3450), (9, 2300), (10, 2070), (12, 1725), (15, 1380), (18, 1150), (20, 1035), (23, 900), (25, 828), (30, 690), (36, 575), (45, 460), (46, 450), (50, 414), (60, 345), (69, 300), (75, 276), (90, 230), (92, 225), (100, 207), (115, 180), (138, 150)]