123129356

素因数分解:

$2^2\times 7^2\times {\mathrm{643}}^1\times {\mathrm{977}}^1$

素因数の和:1638

約数の個数: 36

約数和(自身を含む): 251302968

約数和(自身を除く): 128173612

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 643, 977, 1286, 1954, 2572, 3908, 4501, 6839, 9002, 13678, 18004, 27356, 31507, 47873, 63014, 95746, 126028, 191492, 628211, 1256422, 2512844, 4397477, 8794954, 17589908, 30782339, 61564678, 123129356]

約数ペア:

[(1, 123129356), (2, 61564678), (4, 30782339), (7, 17589908), (14, 8794954), (28, 4397477), (49, 2512844), (98, 1256422), (196, 628211), (643, 191492), (977, 126028), (1286, 95746), (1954, 63014), (2572, 47873), (3908, 31507), (4501, 27356), (6839, 18004), (9002, 13678)]