257430238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3769}}^1$

素因数の和:3892

約数の個数: 32

約数和(自身を含む): 433218240

約数和(自身を除く): 175788002

約数列:

[1, 2, 13, 26, 37, 71, 74, 142, 481, 923, 962, 1846, 2627, 3769, 5254, 7538, 34151, 48997, 68302, 97994, 139453, 267599, 278906, 535198, 1812889, 3478787, 3625778, 6957574, 9901163, 19802326, 128715119, 257430238]

約数ペア:

[(1, 257430238), (2, 128715119), (13, 19802326), (26, 9901163), (37, 6957574), (71, 3625778), (74, 3478787), (142, 1812889), (481, 535198), (923, 278906), (962, 267599), (1846, 139453), (2627, 97994), (3769, 68302), (5254, 48997), (7538, 34151)]