721000225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{2621819}}^1$

素因数の和:2621840

約数の個数: 12

約数和(自身を含む): 975317040

約数和(自身を除く): 254316815

約数列:

[1, 5, 11, 25, 55, 275, 2621819, 13109095, 28840009, 65545475, 144200045, 721000225]

約数ペア:

[(1, 721000225), (5, 144200045), (11, 65545475), (25, 28840009), (55, 13109095), (275, 2621819)]