81187725

素因数分解:

$3^1\times 5^2\times {\mathrm{727}}^1\times {\mathrm{1489}}^1$

素因数の和:2229

約数の個数: 24

約数和(自身を含む): 134505280

約数和(自身を除く): 53317555

約数列:

[1, 3, 5, 15, 25, 75, 727, 1489, 2181, 3635, 4467, 7445, 10905, 18175, 22335, 37225, 54525, 111675, 1082503, 3247509, 5412515, 16237545, 27062575, 81187725]

約数ペア:

[(1, 81187725), (3, 27062575), (5, 16237545), (15, 5412515), (25, 3247509), (75, 1082503), (727, 111675), (1489, 54525), (2181, 37225), (3635, 22335), (4467, 18175), (7445, 10905)]