20171587904

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{782087}}^1$

素因数の和:782143

約数の個数: 56

約数和(自身を含む): 44497678848

約数和(自身を除く): 24326090944

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 208, 248, 403, 416, 496, 806, 832, 992, 1612, 1984, 3224, 6448, 12896, 25792, 782087, 1564174, 3128348, 6256696, 10167131, 12513392, 20334262, 24244697, 25026784, 40668524, 48489394, 50053568, 81337048, 96978788, 162674096, 193957576, 315181061, 325348192, 387915152, 630362122, 650696384, 775830304, 1260724244, 1551660608, 2521448488, 5042896976, 10085793952, 20171587904]

約数ペア:

[(1, 20171587904), (2, 10085793952), (4, 5042896976), (8, 2521448488), (13, 1551660608), (16, 1260724244), (26, 775830304), (31, 650696384), (32, 630362122), (52, 387915152), (62, 325348192), (64, 315181061), (104, 193957576), (124, 162674096), (208, 96978788), (248, 81337048), (403, 50053568), (416, 48489394), (496, 40668524), (806, 25026784), (832, 24244697), (992, 20334262), (1612, 12513392), (1984, 10167131), (3224, 6256696), (6448, 3128348), (12896, 1564174), (25792, 782087)]