257435274

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{4211}}^1$

素因数の和:4682

約数の個数: 32

約数和(自身を含む): 538596864

約数和(自身を除く): 281161590

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 443, 886, 1329, 2658, 4211, 8422, 10189, 12633, 20378, 25266, 30567, 61134, 96853, 193706, 290559, 581118, 1865473, 3730946, 5596419, 11192838, 42905879, 85811758, 128717637, 257435274]

約数ペア:

[(1, 257435274), (2, 128717637), (3, 85811758), (6, 42905879), (23, 11192838), (46, 5596419), (69, 3730946), (138, 1865473), (443, 581118), (886, 290559), (1329, 193706), (2658, 96853), (4211, 61134), (8422, 30567), (10189, 25266), (12633, 20378)]