639552767

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 787968000

約数和(自身を除く): 148415233

約数列:

[1, 7, 17, 113, 119, 199, 239, 791, 1393, 1673, 1921, 3383, 4063, 13447, 22487, 23681, 27007, 28441, 47561, 157409, 189049, 332927, 382279, 459119, 808537, 2675953, 3213833, 5374393, 5659759, 37620751, 91364681, 639552767]

約数ペア:

[(1, 639552767), (7, 91364681), (17, 37620751), (113, 5659759), (119, 5374393), (199, 3213833), (239, 2675953), (791, 808537), (1393, 459119), (1673, 382279), (1921, 332927), (3383, 189049), (4063, 157409), (13447, 47561), (22487, 28441), (23681, 27007)]