81117975

素因数分解:

$3^1\times 5^2\times {\mathrm{83}}^2\times {\mathrm{157}}^1$

素因数の和:336

約数の個数: 36

約数和(自身を含む): 136615016

約数和(自身を除く): 55497041

約数列:

[1, 3, 5, 15, 25, 75, 83, 157, 249, 415, 471, 785, 1245, 2075, 2355, 3925, 6225, 6889, 11775, 13031, 20667, 34445, 39093, 65155, 103335, 172225, 195465, 325775, 516675, 977325, 1081573, 3244719, 5407865, 16223595, 27039325, 81117975]

約数ペア:

[(1, 81117975), (3, 27039325), (5, 16223595), (15, 5407865), (25, 3244719), (75, 1081573), (83, 977325), (157, 516675), (249, 325775), (415, 195465), (471, 172225), (785, 103335), (1245, 65155), (2075, 39093), (2355, 34445), (3925, 20667), (6225, 13031), (6889, 11775)]