257907634

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{111263}}^1$

素因数の和:111345

約数の個数: 16

約数和(自身を含む): 413902080

約数和(自身を除く): 155994446

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 111263, 222526, 2113997, 4227994, 6787043, 13574086, 128953817, 257907634]

約数ペア:

[(1, 257907634), (2, 128953817), (19, 13574086), (38, 6787043), (61, 4227994), (122, 2113997), (1159, 222526), (2318, 111263)]