257917545

素因数分解:

$3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{13679}}^1$

素因数の和:14109

約数の個数: 24

約数和(自身を含む): 448156800

約数和(自身を除く): 190239255

約数列:

[1, 3, 5, 9, 15, 45, 419, 1257, 2095, 3771, 6285, 13679, 18855, 41037, 68395, 123111, 205185, 615555, 5731501, 17194503, 28657505, 51583509, 85972515, 257917545]

約数ペア:

[(1, 257917545), (3, 85972515), (5, 51583509), (9, 28657505), (15, 17194503), (45, 5731501), (419, 615555), (1257, 205185), (2095, 123111), (3771, 68395), (6285, 41037), (13679, 18855)]