390804765

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{42641}}^1$

素因数の和:42709

約数の個数: 32

約数和(自身を含む): 687730176

約数和(自身を除く): 296925411

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 3055, 9165, 42641, 127923, 213205, 554333, 639615, 1662999, 2004127, 2771665, 6012381, 8314995, 10020635, 26053651, 30061905, 78160953, 130268255, 390804765]

約数ペア:

[(1, 390804765), (3, 130268255), (5, 78160953), (13, 30061905), (15, 26053651), (39, 10020635), (47, 8314995), (65, 6012381), (141, 2771665), (195, 2004127), (235, 1662999), (611, 639615), (705, 554333), (1833, 213205), (3055, 127923), (9165, 42641)]