18173320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 45152640

約数和(自身を除く): 26979320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 103, 110, 206, 220, 401, 412, 440, 515, 802, 824, 1030, 1133, 1604, 2005, 2060, 2266, 3208, 4010, 4120, 4411, 4532, 5665, 8020, 8822, 9064, 11330, 16040, 17644, 22055, 22660, 35288, 41303, 44110, 45320, 82606, 88220, 165212, 176440, 206515, 330424, 413030, 454333, 826060, 908666, 1652120, 1817332, 2271665, 3634664, 4543330, 9086660, 18173320]

約数ペア:

[(1, 18173320), (2, 9086660), (4, 4543330), (5, 3634664), (8, 2271665), (10, 1817332), (11, 1652120), (20, 908666), (22, 826060), (40, 454333), (44, 413030), (55, 330424), (88, 206515), (103, 176440), (110, 165212), (206, 88220), (220, 82606), (401, 45320), (412, 44110), (440, 41303), (515, 35288), (802, 22660), (824, 22055), (1030, 17644), (1133, 16040), (1604, 11330), (2005, 9064), (2060, 8822), (2266, 8020), (3208, 5665), (4010, 4532), (4120, 4411)]