251216105

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2351}}^1$

素因数の和:2477

約数の個数: 32

約数和(自身を含む): 357654528

約数和(自身を除く): 106438423

約数列:

[1, 5, 7, 35, 43, 71, 215, 301, 355, 497, 1505, 2351, 2485, 3053, 11755, 15265, 16457, 21371, 82285, 101093, 106855, 166921, 505465, 707651, 834605, 1168447, 3538255, 5842235, 7177603, 35888015, 50243221, 251216105]

約数ペア:

[(1, 251216105), (5, 50243221), (7, 35888015), (35, 7177603), (43, 5842235), (71, 3538255), (215, 1168447), (301, 834605), (355, 707651), (497, 505465), (1505, 166921), (2351, 106855), (2485, 101093), (3053, 82285), (11755, 21371), (15265, 16457)]