313991275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{3343}}^1$

素因数の和:3400

約数の個数: 36

約数和(自身を含む): 445547872

約数和(自身を除く): 131556597

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 289, 325, 425, 1105, 1445, 3343, 3757, 5525, 7225, 16715, 18785, 43459, 56831, 83575, 93925, 217295, 284155, 738803, 966127, 1086475, 1420775, 3694015, 4830635, 12559651, 18470075, 24153175, 62798255, 313991275]

約数ペア:

[(1, 313991275), (5, 62798255), (13, 24153175), (17, 18470075), (25, 12559651), (65, 4830635), (85, 3694015), (221, 1420775), (289, 1086475), (325, 966127), (425, 738803), (1105, 284155), (1445, 217295), (3343, 93925), (3757, 83575), (5525, 56831), (7225, 43459), (16715, 18785)]