138989825

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:594

約数の個数: 36

約数和(自身を含む): 189795888

約数和(自身を除く): 50806063

約数列:

[1, 5, 13, 25, 65, 67, 169, 325, 335, 491, 845, 871, 1675, 2455, 4225, 4355, 6383, 11323, 12275, 21775, 31915, 32897, 56615, 82979, 159575, 164485, 283075, 414895, 427661, 822425, 2074475, 2138305, 5559593, 10691525, 27797965, 138989825]

約数ペア:

[(1, 138989825), (5, 27797965), (13, 10691525), (25, 5559593), (65, 2138305), (67, 2074475), (169, 822425), (325, 427661), (335, 414895), (491, 283075), (845, 164485), (871, 159575), (1675, 82979), (2455, 56615), (4225, 32897), (4355, 31915), (6383, 21775), (11323, 12275)]