209657168

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{25643}}^1$

素因数の和:25731

約数の個数: 40

約数和(自身を含む): 470618688

約数和(自身を除く): 260961520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 4088, 8176, 25643, 51286, 102572, 179501, 205144, 359002, 410288, 718004, 1436008, 1871939, 2872016, 3743878, 7487756, 13103573, 14975512, 26207146, 29951024, 52414292, 104828584, 209657168]

約数ペア:

[(1, 209657168), (2, 104828584), (4, 52414292), (7, 29951024), (8, 26207146), (14, 14975512), (16, 13103573), (28, 7487756), (56, 3743878), (73, 2872016), (112, 1871939), (146, 1436008), (292, 718004), (511, 410288), (584, 359002), (1022, 205144), (1168, 179501), (2044, 102572), (4088, 51286), (8176, 25643)]