12720125

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{29}}^2$

素因数の和:95

約数の個数: 36

約数和(自身を含む): 18071508

約数和(自身を除く): 5351383

約数列:

[1, 5, 11, 25, 29, 55, 121, 125, 145, 275, 319, 605, 725, 841, 1375, 1595, 3025, 3509, 3625, 4205, 7975, 9251, 15125, 17545, 21025, 39875, 46255, 87725, 101761, 105125, 231275, 438625, 508805, 1156375, 2544025, 12720125]

約数ペア:

[(1, 12720125), (5, 2544025), (11, 1156375), (25, 508805), (29, 438625), (55, 231275), (121, 105125), (125, 101761), (145, 87725), (275, 46255), (319, 39875), (605, 21025), (725, 17545), (841, 15125), (1375, 9251), (1595, 7975), (3025, 4205), (3509, 3625)]