42120305

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 54405312

約数和(自身を除く): 12285007

約数列:

[1, 5, 17, 85, 103, 283, 289, 515, 1415, 1445, 1751, 4811, 8755, 24055, 29149, 29767, 81787, 145745, 148835, 408935, 495533, 2477665, 8424061, 42120305]

約数ペア:

[(1, 42120305), (5, 8424061), (17, 2477665), (85, 495533), (103, 408935), (283, 148835), (289, 145745), (515, 81787), (1415, 29767), (1445, 29149), (1751, 24055), (4811, 8755)]