251016815

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{4177}}^1$

素因数の和:4307

約数の個数: 32

約数和(自身を含む): 368198784

約数和(自身を除く): 117181969

約数列:

[1, 5, 7, 17, 35, 85, 101, 119, 505, 595, 707, 1717, 3535, 4177, 8585, 12019, 20885, 29239, 60095, 71009, 146195, 355045, 421877, 497063, 2109385, 2485315, 2953139, 7171909, 14765695, 35859545, 50203363, 251016815]

約数ペア:

[(1, 251016815), (5, 50203363), (7, 35859545), (17, 14765695), (35, 7171909), (85, 2953139), (101, 2485315), (119, 2109385), (505, 497063), (595, 421877), (707, 355045), (1717, 146195), (3535, 71009), (4177, 60095), (8585, 29239), (12019, 20885)]