25708216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9949}}^1$

素因数の和:9991

約数の個数: 32

約数和(自身を含む): 53730000

約数和(自身を除く): 28021784

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 9949, 19898, 39796, 79592, 169133, 189031, 338266, 378062, 676532, 756124, 1353064, 1512248, 3213527, 6427054, 12854108, 25708216]

約数ペア:

[(1, 25708216), (2, 12854108), (4, 6427054), (8, 3213527), (17, 1512248), (19, 1353064), (34, 756124), (38, 676532), (68, 378062), (76, 338266), (136, 189031), (152, 169133), (323, 79592), (646, 39796), (1292, 19898), (2584, 9949)]