20400525

素因数分解:

$3^3\times 5^2\times {\mathrm{30223}}^1$

素因数の和:30242

約数の個数: 24

約数和(自身を含む): 37477760

約数和(自身を除く): 17077235

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 30223, 90669, 151115, 272007, 453345, 755575, 816021, 1360035, 2266725, 4080105, 6800175, 20400525]

約数ペア:

[(1, 20400525), (3, 6800175), (5, 4080105), (9, 2266725), (15, 1360035), (25, 816021), (27, 755575), (45, 453345), (75, 272007), (135, 151115), (225, 90669), (675, 30223)]