990275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 1447824

約数和(自身を除く): 457549

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 277, 325, 715, 1385, 3047, 3575, 3601, 6925, 15235, 18005, 39611, 76175, 90025, 198055, 990275]

約数ペア:

[(1, 990275), (5, 198055), (11, 90025), (13, 76175), (25, 39611), (55, 18005), (65, 15235), (143, 6925), (275, 3601), (277, 3575), (325, 3047), (715, 1385)]