18976960

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1913}}^1$

素因数の和:1961

約数の個数: 56

約数和(自身を含む): 46670976

約数和(自身を除く): 27694016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1913, 1984, 2480, 3826, 4960, 7652, 9565, 9920, 15304, 19130, 30608, 38260, 59303, 61216, 76520, 118606, 122432, 153040, 237212, 296515, 306080, 474424, 593030, 612160, 948848, 1186060, 1897696, 2372120, 3795392, 4744240, 9488480, 18976960]

約数ペア:

[(1, 18976960), (2, 9488480), (4, 4744240), (5, 3795392), (8, 2372120), (10, 1897696), (16, 1186060), (20, 948848), (31, 612160), (32, 593030), (40, 474424), (62, 306080), (64, 296515), (80, 237212), (124, 153040), (155, 122432), (160, 118606), (248, 76520), (310, 61216), (320, 59303), (496, 38260), (620, 30608), (992, 19130), (1240, 15304), (1913, 9920), (1984, 9565), (2480, 7652), (3826, 4960)]