515385

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 963144

約数和(自身を除く): 447759

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 881, 2643, 4405, 7929, 11453, 13215, 34359, 39645, 57265, 103077, 171795, 515385]

約数ペア:

[(1, 515385), (3, 171795), (5, 103077), (9, 57265), (13, 39645), (15, 34359), (39, 13215), (45, 11453), (65, 7929), (117, 4405), (195, 2643), (585, 881)]