388617025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{3643}}^1$

素因数の和:3921

約数の個数: 24

約数和(自身を含む): 512404704

約数和(自身を除く): 123787679

約数列:

[1, 5, 17, 25, 85, 251, 425, 1255, 3643, 4267, 6275, 18215, 21335, 61931, 91075, 106675, 309655, 914393, 1548275, 4571965, 15544681, 22859825, 77723405, 388617025]

約数ペア:

[(1, 388617025), (5, 77723405), (17, 22859825), (25, 15544681), (85, 4571965), (251, 1548275), (425, 914393), (1255, 309655), (3643, 106675), (4267, 91075), (6275, 61931), (18215, 21335)]