81252975

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{20441}}^1$

素因数の和:20507

約数の個数: 24

約数和(自身を含む): 136879632

約数和(自身を除く): 55626657

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 20441, 61323, 102205, 306615, 511025, 1083373, 1533075, 3250119, 5416865, 16250595, 27084325, 81252975]

約数ペア:

[(1, 81252975), (3, 27084325), (5, 16250595), (15, 5416865), (25, 3250119), (53, 1533075), (75, 1083373), (159, 511025), (265, 306615), (795, 102205), (1325, 61323), (3975, 20441)]