2557305

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1030

約数の個数: 32

約数和(自身を含む): 4790400

約数和(自身を除く): 2233095

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 997, 2565, 2991, 4985, 8973, 14955, 18943, 26919, 44865, 56829, 94715, 134595, 170487, 284145, 511461, 852435, 2557305]

約数ペア:

[(1, 2557305), (3, 852435), (5, 511461), (9, 284145), (15, 170487), (19, 134595), (27, 94715), (45, 56829), (57, 44865), (95, 26919), (135, 18943), (171, 14955), (285, 8973), (513, 4985), (855, 2991), (997, 2565)]