20787184

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1423}}^1$

素因数の和:1525

約数の個数: 40

約数和(自身を含む): 44497152

約数和(自身を除く): 23709968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 166, 176, 332, 664, 913, 1328, 1423, 1826, 2846, 3652, 5692, 7304, 11384, 14608, 15653, 22768, 31306, 62612, 118109, 125224, 236218, 250448, 472436, 944872, 1299199, 1889744, 2598398, 5196796, 10393592, 20787184]

約数ペア:

[(1, 20787184), (2, 10393592), (4, 5196796), (8, 2598398), (11, 1889744), (16, 1299199), (22, 944872), (44, 472436), (83, 250448), (88, 236218), (166, 125224), (176, 118109), (332, 62612), (664, 31306), (913, 22768), (1328, 15653), (1423, 14608), (1826, 11384), (2846, 7304), (3652, 5692)]