638548904

素因数分解:

$2^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{51133}}^1$

素因数の和:51369

約数の個数: 32

約数和(自身を含む): 1374481920

約数和(自身を除く): 735933016

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 223, 446, 892, 1561, 1784, 3122, 6244, 12488, 51133, 102266, 204532, 357931, 409064, 715862, 1431724, 2863448, 11402659, 22805318, 45610636, 79818613, 91221272, 159637226, 319274452, 638548904]

約数ペア:

[(1, 638548904), (2, 319274452), (4, 159637226), (7, 91221272), (8, 79818613), (14, 45610636), (28, 22805318), (56, 11402659), (223, 2863448), (446, 1431724), (892, 715862), (1561, 409064), (1784, 357931), (3122, 204532), (6244, 102266), (12488, 51133)]