87949540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{977}}^1$

素因数の和:1636

約数の個数: 48

約数和(自身を含む): 211623552

約数和(自身を除く): 123674012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 977, 1286, 1954, 2572, 3215, 3908, 4501, 4885, 6430, 6839, 9002, 9770, 12860, 13678, 18004, 19540, 22505, 27356, 34195, 45010, 68390, 90020, 136780, 628211, 1256422, 2512844, 3141055, 4397477, 6282110, 8794954, 12564220, 17589908, 21987385, 43974770, 87949540]

約数ペア:

[(1, 87949540), (2, 43974770), (4, 21987385), (5, 17589908), (7, 12564220), (10, 8794954), (14, 6282110), (20, 4397477), (28, 3141055), (35, 2512844), (70, 1256422), (140, 628211), (643, 136780), (977, 90020), (1286, 68390), (1954, 45010), (2572, 34195), (3215, 27356), (3908, 22505), (4501, 19540), (4885, 18004), (6430, 13678), (6839, 12860), (9002, 9770)]