20131375

素因数分解:

$5^3\times {\mathrm{11}}^5$

素因数の和:70

約数の個数: 24

約数和(自身を含む): 27636336

約数和(自身を除く): 7504961

約数列:

[1, 5, 11, 25, 55, 121, 125, 275, 605, 1331, 1375, 3025, 6655, 14641, 15125, 33275, 73205, 161051, 166375, 366025, 805255, 1830125, 4026275, 20131375]

約数ペア:

[(1, 20131375), (5, 4026275), (11, 1830125), (25, 805255), (55, 366025), (121, 166375), (125, 161051), (275, 73205), (605, 33275), (1331, 15125), (1375, 14641), (3025, 6655)]