18979675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5309}}^1$

素因数の和:5343

約数の個数: 24

約数和(自身を含む): 27654480

約数和(自身を除く): 8674805

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 5309, 26545, 58399, 69017, 132725, 291995, 345085, 759187, 1459975, 1725425, 3795935, 18979675]

約数ペア:

[(1, 18979675), (5, 3795935), (11, 1725425), (13, 1459975), (25, 759187), (55, 345085), (65, 291995), (143, 132725), (275, 69017), (325, 58399), (715, 26545), (3575, 5309)]