81075

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:83

約数の個数: 24

約数和(自身を含む): 142848

約数和(自身を除く): 61773

約数列:

[1, 3, 5, 15, 23, 25, 47, 69, 75, 115, 141, 235, 345, 575, 705, 1081, 1175, 1725, 3243, 3525, 5405, 16215, 27025, 81075]

約数ペア:

[(1, 81075), (3, 27025), (5, 16215), (15, 5405), (23, 3525), (25, 3243), (47, 1725), (69, 1175), (75, 1081), (115, 705), (141, 575), (235, 345)]