140808025

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{19489}}^1$

素因数の和:19533

約数の個数: 18

約数和(自身を含む): 185486330

約数和(自身を除く): 44678305

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 19489, 97445, 331313, 487225, 1656565, 5632321, 8282825, 28161605, 140808025]

約数ペア:

[(1, 140808025), (5, 28161605), (17, 8282825), (25, 5632321), (85, 1656565), (289, 487225), (425, 331313), (1445, 97445), (7225, 19489)]