71787425

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{1553}}^1$

素因数の和:1649

約数の個数: 18

約数和(自身を含む): 91193382

約数和(自身を除く): 19405957

約数列:

[1, 5, 25, 43, 215, 1075, 1553, 1849, 7765, 9245, 38825, 46225, 66779, 333895, 1669475, 2871497, 14357485, 71787425]

約数ペア:

[(1, 71787425), (5, 14357485), (25, 2871497), (43, 1669475), (215, 333895), (1075, 66779), (1553, 46225), (1849, 38825), (7765, 9245)]