81158425

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:330

約数の個数: 36

約数和(自身を含む): 109635840

約数和(自身を除く): 28477415

約数列:

[1, 5, 17, 25, 47, 85, 235, 239, 289, 425, 799, 1175, 1195, 1445, 3995, 4063, 5975, 7225, 11233, 13583, 19975, 20315, 56165, 67915, 69071, 101575, 190961, 280825, 339575, 345355, 954805, 1726775, 3246337, 4774025, 16231685, 81158425]

約数ペア:

[(1, 81158425), (5, 16231685), (17, 4774025), (25, 3246337), (47, 1726775), (85, 954805), (235, 345355), (239, 339575), (289, 280825), (425, 190961), (799, 101575), (1175, 69071), (1195, 67915), (1445, 56165), (3995, 20315), (4063, 19975), (5975, 13583), (7225, 11233)]