77987640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{649897}}^1$

素因数の和:649911

約数の個数: 32

約数和(自身を含む): 233963280

約数和(自身を除く): 155975640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 649897, 1299794, 1949691, 2599588, 3249485, 3899382, 5199176, 6498970, 7798764, 9748455, 12997940, 15597528, 19496910, 25995880, 38993820, 77987640]

約数ペア:

[(1, 77987640), (2, 38993820), (3, 25995880), (4, 19496910), (5, 15597528), (6, 12997940), (8, 9748455), (10, 7798764), (12, 6498970), (15, 5199176), (20, 3899382), (24, 3249485), (30, 2599588), (40, 1949691), (60, 1299794), (120, 649897)]