20616368

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{929}}^1$

素因数の和:1029

約数の個数: 40

約数和(自身を含む): 42668400

約数和(自身を除く): 22052032

約数列:

[1, 2, 4, 8, 16, 19, 38, 73, 76, 146, 152, 292, 304, 584, 929, 1168, 1387, 1858, 2774, 3716, 5548, 7432, 11096, 14864, 17651, 22192, 35302, 67817, 70604, 135634, 141208, 271268, 282416, 542536, 1085072, 1288523, 2577046, 5154092, 10308184, 20616368]

約数ペア:

[(1, 20616368), (2, 10308184), (4, 5154092), (8, 2577046), (16, 1288523), (19, 1085072), (38, 542536), (73, 282416), (76, 271268), (146, 141208), (152, 135634), (292, 70604), (304, 67817), (584, 35302), (929, 22192), (1168, 17651), (1387, 14864), (1858, 11096), (2774, 7432), (3716, 5548)]