2790225

素因数分解:

$3^2\times 5^2\times {\mathrm{12401}}^1$

素因数の和:12417

約数の個数: 18

約数和(自身を含む): 4998006

約数和(自身を除く): 2207781

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 12401, 37203, 62005, 111609, 186015, 310025, 558045, 930075, 2790225]

約数ペア:

[(1, 2790225), (3, 930075), (5, 558045), (9, 310025), (15, 186015), (25, 111609), (45, 62005), (75, 37203), (225, 12401)]