81378304

素因数分解:

$2^{10}\times 7^1\times {\mathrm{11353}}^1$

素因数の和:11380

約数の個数: 44

約数和(自身を含む): 185933104

約数和(自身を除く): 104554800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 3584, 7168, 11353, 22706, 45412, 79471, 90824, 158942, 181648, 317884, 363296, 635768, 726592, 1271536, 1453184, 2543072, 2906368, 5086144, 5812736, 10172288, 11625472, 20344576, 40689152, 81378304]

約数ペア:

[(1, 81378304), (2, 40689152), (4, 20344576), (7, 11625472), (8, 10172288), (14, 5812736), (16, 5086144), (28, 2906368), (32, 2543072), (56, 1453184), (64, 1271536), (112, 726592), (128, 635768), (224, 363296), (256, 317884), (448, 181648), (512, 158942), (896, 90824), (1024, 79471), (1792, 45412), (3584, 22706), (7168, 11353)]