39968525

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{1901}}^1$

素因数の和:1969

約数の個数: 18

約数和(自身を含む): 51355902

約数和(自身を除く): 11387377

約数列:

[1, 5, 25, 29, 145, 725, 841, 1901, 4205, 9505, 21025, 47525, 55129, 275645, 1378225, 1598741, 7993705, 39968525]

約数ペア:

[(1, 39968525), (5, 7993705), (25, 1598741), (29, 1378225), (145, 275645), (725, 55129), (841, 47525), (1901, 21025), (4205, 9505)]