1311232

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:228

約数の個数: 40

約数和(自身を含む): 2835756

約数和(自身を除く): 1524524

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 197, 208, 256, 394, 416, 512, 788, 832, 1576, 1664, 2561, 3152, 3328, 5122, 6304, 6656, 10244, 12608, 20488, 25216, 40976, 50432, 81952, 100864, 163904, 327808, 655616, 1311232]

約数ペア:

[(1, 1311232), (2, 655616), (4, 327808), (8, 163904), (13, 100864), (16, 81952), (26, 50432), (32, 40976), (52, 25216), (64, 20488), (104, 12608), (128, 10244), (197, 6656), (208, 6304), (256, 5122), (394, 3328), (416, 3152), (512, 2561), (788, 1664), (832, 1576)]