78642495

素因数分解:

$3^4\times 5^1\times {\mathrm{194179}}^1$

素因数の和:194196

約数の個数: 20

約数和(自身を含む): 140974680

約数和(自身を除く): 62332185

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 194179, 582537, 970895, 1747611, 2912685, 5242833, 8738055, 15728499, 26214165, 78642495]

約数ペア:

[(1, 78642495), (3, 26214165), (5, 15728499), (9, 8738055), (15, 5242833), (27, 2912685), (45, 1747611), (81, 970895), (135, 582537), (405, 194179)]