81215175

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{25183}}^1$

素因数の和:25239

約数の個数: 24

約数和(自身を含む): 137403904

約数和(自身を除く): 56188729

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 25183, 75549, 125915, 377745, 629575, 1082869, 1888725, 3248607, 5414345, 16243035, 27071725, 81215175]

約数ペア:

[(1, 81215175), (3, 27071725), (5, 16243035), (15, 5414345), (25, 3248607), (43, 1888725), (75, 1082869), (129, 629575), (215, 377745), (645, 125915), (1075, 75549), (3225, 25183)]