1388985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 2540160

約数和(自身を除く): 1151175

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 419, 663, 1105, 1257, 2095, 3315, 5447, 6285, 7123, 16341, 21369, 27235, 35615, 81705, 92599, 106845, 277797, 462995, 1388985]

約数ペア:

[(1, 1388985), (3, 462995), (5, 277797), (13, 106845), (15, 92599), (17, 81705), (39, 35615), (51, 27235), (65, 21369), (85, 16341), (195, 7123), (221, 6285), (255, 5447), (419, 3315), (663, 2095), (1105, 1257)]