61920225

素因数分解:

$3^2\times 5^2\times {\mathrm{275201}}^1$

素因数の和:275217

約数の個数: 18

約数和(自身を含む): 110906406

約数和(自身を除く): 48986181

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 275201, 825603, 1376005, 2476809, 4128015, 6880025, 12384045, 20640075, 61920225]

約数ペア:

[(1, 61920225), (3, 20640075), (5, 12384045), (9, 6880025), (15, 4128015), (25, 2476809), (45, 1376005), (75, 825603), (225, 275201)]