20340675

素因数分解:

$3^2\times 5^2\times {\mathrm{90403}}^1$

素因数の和:90419

約数の個数: 18

約数和(自身を含む): 36432812

約数和(自身を除く): 16092137

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90403, 271209, 452015, 813627, 1356045, 2260075, 4068135, 6780225, 20340675]

約数ペア:

[(1, 20340675), (3, 6780225), (5, 4068135), (9, 2260075), (15, 1356045), (25, 813627), (45, 452015), (75, 271209), (225, 90403)]