245115

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:443

約数の個数: 24

約数和(自身を含む): 458640

約数和(自身を除く): 213525

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 419, 585, 1257, 2095, 3771, 5447, 6285, 16341, 18855, 27235, 49023, 81705, 245115]

約数ペア:

[(1, 245115), (3, 81705), (5, 49023), (9, 27235), (13, 18855), (15, 16341), (39, 6285), (45, 5447), (65, 3771), (117, 2095), (195, 1257), (419, 585)]