1222975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 24

約数和(自身を含む): 1687392

約数和(自身を除く): 464417

約数列:

[1, 5, 13, 25, 53, 65, 71, 265, 325, 355, 689, 923, 1325, 1775, 3445, 3763, 4615, 17225, 18815, 23075, 48919, 94075, 244595, 1222975]

約数ペア:

[(1, 1222975), (5, 244595), (13, 94075), (25, 48919), (53, 23075), (65, 18815), (71, 17225), (265, 4615), (325, 3763), (355, 3445), (689, 1775), (923, 1325)]