20340225

素因数分解:

$3^2\times 5^2\times {\mathrm{90401}}^1$

素因数の和:90417

約数の個数: 18

約数和(自身を含む): 36432006

約数和(自身を除く): 16091781

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90401, 271203, 452005, 813609, 1356015, 2260025, 4068045, 6780075, 20340225]

約数ペア:

[(1, 20340225), (3, 6780075), (5, 4068045), (9, 2260025), (15, 1356015), (25, 813609), (45, 452005), (75, 271203), (225, 90401)]