42157025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:661

約数の個数: 24

約数和(自身を含む): 55704024

約数和(自身を除く): 13546999

約数列:

[1, 5, 17, 25, 85, 281, 353, 425, 1405, 1765, 4777, 6001, 7025, 8825, 23885, 30005, 99193, 119425, 150025, 495965, 1686281, 2479825, 8431405, 42157025]

約数ペア:

[(1, 42157025), (5, 8431405), (17, 2479825), (25, 1686281), (85, 495965), (281, 150025), (353, 119425), (425, 99193), (1405, 30005), (1765, 23885), (4777, 8825), (6001, 7025)]