205129418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{829}}^1$

素因数の和:1182

約数の個数: 32

約数和(自身を含む): 343580160

約数和(自身を除く): 138450742

約数列:

[1, 2, 13, 26, 31, 62, 307, 403, 614, 806, 829, 1658, 3991, 7982, 9517, 10777, 19034, 21554, 25699, 51398, 123721, 247442, 254503, 334087, 509006, 668174, 3308539, 6617078, 7889593, 15779186, 102564709, 205129418]

約数ペア:

[(1, 205129418), (2, 102564709), (13, 15779186), (26, 7889593), (31, 6617078), (62, 3308539), (307, 668174), (403, 509006), (614, 334087), (806, 254503), (829, 247442), (1658, 123721), (3991, 51398), (7982, 25699), (9517, 21554), (10777, 19034)]