81245205

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{26947}}^1$

素因数の和:27025

約数の個数: 24

約数和(自身を含む): 142932192

約数和(自身を除く): 61686987

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 26947, 80841, 134735, 242523, 404205, 1212615, 1805449, 5416347, 9027245, 16249041, 27081735, 81245205]

約数ペア:

[(1, 81245205), (3, 27081735), (5, 16249041), (9, 9027245), (15, 5416347), (45, 1805449), (67, 1212615), (201, 404205), (335, 242523), (603, 134735), (1005, 80841), (3015, 26947)]