31140225

素因数分解:

$3^2\times 5^2\times {\mathrm{138401}}^1$

素因数の和:138417

約数の個数: 18

約数和(自身を含む): 55776006

約数和(自身を除く): 24635781

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 138401, 415203, 692005, 1245609, 2076015, 3460025, 6228045, 10380075, 31140225]

約数ペア:

[(1, 31140225), (3, 10380075), (5, 6228045), (9, 3460025), (15, 2076015), (25, 1245609), (45, 692005), (75, 415203), (225, 138401)]