81696784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{751}}^1$

素因数の和:1295

約数の個数: 40

約数和(自身を含む): 171016832

約数和(自身を除く): 89320048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 523, 751, 1046, 1502, 2092, 3004, 4184, 6008, 6799, 8368, 9763, 12016, 13598, 19526, 27196, 39052, 54392, 78104, 108784, 156208, 392773, 785546, 1571092, 3142184, 5106049, 6284368, 10212098, 20424196, 40848392, 81696784]

約数ペア:

[(1, 81696784), (2, 40848392), (4, 20424196), (8, 10212098), (13, 6284368), (16, 5106049), (26, 3142184), (52, 1571092), (104, 785546), (208, 392773), (523, 156208), (751, 108784), (1046, 78104), (1502, 54392), (2092, 39052), (3004, 27196), (4184, 19526), (6008, 13598), (6799, 12016), (8368, 9763)]