20777984

素因数分解:

$2^{10}\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:320

約数の個数: 44

約数和(自身を含む): 42151824

約数和(自身を除く): 21373840

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 197, 206, 256, 394, 412, 512, 788, 824, 1024, 1576, 1648, 3152, 3296, 6304, 6592, 12608, 13184, 20291, 25216, 26368, 40582, 50432, 52736, 81164, 100864, 105472, 162328, 201728, 324656, 649312, 1298624, 2597248, 5194496, 10388992, 20777984]

約数ペア:

[(1, 20777984), (2, 10388992), (4, 5194496), (8, 2597248), (16, 1298624), (32, 649312), (64, 324656), (103, 201728), (128, 162328), (197, 105472), (206, 100864), (256, 81164), (394, 52736), (412, 50432), (512, 40582), (788, 26368), (824, 25216), (1024, 20291), (1576, 13184), (1648, 12608), (3152, 6592), (3296, 6304)]