81231135

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 133132032

約数和(自身を除く): 51900897

約数列:

[1, 3, 5, 15, 67, 131, 201, 335, 393, 617, 655, 1005, 1851, 1965, 3085, 8777, 9255, 26331, 41339, 43885, 80827, 124017, 131655, 206695, 242481, 404135, 620085, 1212405, 5415409, 16246227, 27077045, 81231135]

約数ペア:

[(1, 81231135), (3, 27077045), (5, 16246227), (15, 5415409), (67, 1212405), (131, 620085), (201, 404135), (335, 242481), (393, 206695), (617, 131655), (655, 124017), (1005, 80827), (1851, 43885), (1965, 41339), (3085, 26331), (8777, 9255)]