16390816

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:126

約数の個数: 72

約数和(自身を含む): 36784692

約数和(自身を除く): 20393876

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 41, 52, 62, 82, 104, 124, 164, 208, 248, 328, 403, 416, 496, 533, 656, 806, 961, 992, 1066, 1271, 1312, 1612, 1922, 2132, 2542, 3224, 3844, 4264, 5084, 6448, 7688, 8528, 10168, 12493, 12896, 15376, 16523, 17056, 20336, 24986, 30752, 33046, 39401, 40672, 49972, 66092, 78802, 99944, 132184, 157604, 199888, 264368, 315208, 399776, 512213, 528736, 630416, 1024426, 1260832, 2048852, 4097704, 8195408, 16390816]

約数ペア:

[(1, 16390816), (2, 8195408), (4, 4097704), (8, 2048852), (13, 1260832), (16, 1024426), (26, 630416), (31, 528736), (32, 512213), (41, 399776), (52, 315208), (62, 264368), (82, 199888), (104, 157604), (124, 132184), (164, 99944), (208, 78802), (248, 66092), (328, 49972), (403, 40672), (416, 39401), (496, 33046), (533, 30752), (656, 24986), (806, 20336), (961, 17056), (992, 16523), (1066, 15376), (1271, 12896), (1312, 12493), (1612, 10168), (1922, 8528), (2132, 7688), (2542, 6448), (3224, 5084), (3844, 4264)]