18180736

素因数分解:

$2^7\times 7^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 42007680

約数和(自身を除く): 23826944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 103, 112, 128, 197, 206, 224, 394, 412, 448, 721, 788, 824, 896, 1379, 1442, 1576, 1648, 2758, 2884, 3152, 3296, 5516, 5768, 6304, 6592, 11032, 11536, 12608, 13184, 20291, 22064, 23072, 25216, 40582, 44128, 46144, 81164, 88256, 92288, 142037, 162328, 176512, 284074, 324656, 568148, 649312, 1136296, 1298624, 2272592, 2597248, 4545184, 9090368, 18180736]

約数ペア:

[(1, 18180736), (2, 9090368), (4, 4545184), (7, 2597248), (8, 2272592), (14, 1298624), (16, 1136296), (28, 649312), (32, 568148), (56, 324656), (64, 284074), (103, 176512), (112, 162328), (128, 142037), (197, 92288), (206, 88256), (224, 81164), (394, 46144), (412, 44128), (448, 40582), (721, 25216), (788, 23072), (824, 22064), (896, 20291), (1379, 13184), (1442, 12608), (1576, 11536), (1648, 11032), (2758, 6592), (2884, 6304), (3152, 5768), (3296, 5516)]