2540025

素因数分解:

$3^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:143

約数の個数: 48

約数和(自身を含む): 4821120

約数和(自身を除く): 2281095

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 71, 75, 135, 159, 213, 225, 265, 355, 477, 639, 675, 795, 1065, 1325, 1431, 1775, 1917, 2385, 3195, 3763, 3975, 5325, 7155, 9585, 11289, 11925, 15975, 18815, 33867, 35775, 47925, 56445, 94075, 101601, 169335, 282225, 508005, 846675, 2540025]

約数ペア:

[(1, 2540025), (3, 846675), (5, 508005), (9, 282225), (15, 169335), (25, 101601), (27, 94075), (45, 56445), (53, 47925), (71, 35775), (75, 33867), (135, 18815), (159, 15975), (213, 11925), (225, 11289), (265, 9585), (355, 7155), (477, 5325), (639, 3975), (675, 3763), (795, 3195), (1065, 2385), (1325, 1917), (1431, 1775)]