81594225

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{15767}}^1$

素因数の和:15806

約数の個数: 36

約数和(自身を含む): 152508096

約数和(自身を除く): 70913871

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 15767, 47301, 78835, 141903, 236505, 362641, 394175, 709515, 1087923, 1182525, 1813205, 3263769, 3547575, 5439615, 9066025, 16318845, 27198075, 81594225]

約数ペア:

[(1, 81594225), (3, 27198075), (5, 16318845), (9, 9066025), (15, 5439615), (23, 3547575), (25, 3263769), (45, 1813205), (69, 1182525), (75, 1087923), (115, 709515), (207, 394175), (225, 362641), (345, 236505), (575, 141903), (1035, 78835), (1725, 47301), (5175, 15767)]