2540512

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 5588352

約数和(自身を除く): 3047840

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 197, 208, 248, 394, 403, 416, 496, 788, 806, 992, 1576, 1612, 2561, 3152, 3224, 5122, 6107, 6304, 6448, 10244, 12214, 12896, 20488, 24428, 40976, 48856, 79391, 81952, 97712, 158782, 195424, 317564, 635128, 1270256, 2540512]

約数ペア:

[(1, 2540512), (2, 1270256), (4, 635128), (8, 317564), (13, 195424), (16, 158782), (26, 97712), (31, 81952), (32, 79391), (52, 48856), (62, 40976), (104, 24428), (124, 20488), (197, 12896), (208, 12214), (248, 10244), (394, 6448), (403, 6304), (416, 6107), (496, 5122), (788, 3224), (806, 3152), (992, 2561), (1576, 1612)]