256250385

素因数分解:

$3^4\times 5^1\times {\mathrm{632717}}^1$

素因数の和:632734

約数の個数: 20

約数和(自身を含む): 459353268

約数和(自身を除く): 203102883

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 632717, 1898151, 3163585, 5694453, 9490755, 17083359, 28472265, 51250077, 85416795, 256250385]

約数ペア:

[(1, 256250385), (3, 85416795), (5, 51250077), (9, 28472265), (15, 17083359), (27, 9490755), (45, 5694453), (81, 3163585), (135, 1898151), (405, 632717)]