217359875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{439}}^1$

素因数の和:704

約数の個数: 32

約数和(自身を含む): 289111680

約数和(自身を除く): 71751805

約数列:

[1, 5, 17, 25, 85, 125, 233, 425, 439, 1165, 2125, 2195, 3961, 5825, 7463, 10975, 19805, 29125, 37315, 54875, 99025, 102287, 186575, 495125, 511435, 932875, 1738879, 2557175, 8694395, 12785875, 43471975, 217359875]

約数ペア:

[(1, 217359875), (5, 43471975), (17, 12785875), (25, 8694395), (85, 2557175), (125, 1738879), (233, 932875), (425, 511435), (439, 495125), (1165, 186575), (2125, 102287), (2195, 99025), (3961, 54875), (5825, 37315), (7463, 29125), (10975, 19805)]