28771520

素因数分解:

$2^6\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1913}}^1$

素因数の和:1977

約数の個数: 56

約数和(自身を含む): 70006464

約数和(自身を除く): 41234944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 160, 188, 235, 320, 376, 470, 752, 940, 1504, 1880, 1913, 3008, 3760, 3826, 7520, 7652, 9565, 15040, 15304, 19130, 30608, 38260, 61216, 76520, 89911, 122432, 153040, 179822, 306080, 359644, 449555, 612160, 719288, 899110, 1438576, 1798220, 2877152, 3596440, 5754304, 7192880, 14385760, 28771520]

約数ペア:

[(1, 28771520), (2, 14385760), (4, 7192880), (5, 5754304), (8, 3596440), (10, 2877152), (16, 1798220), (20, 1438576), (32, 899110), (40, 719288), (47, 612160), (64, 449555), (80, 359644), (94, 306080), (160, 179822), (188, 153040), (235, 122432), (320, 89911), (376, 76520), (470, 61216), (752, 38260), (940, 30608), (1504, 19130), (1880, 15304), (1913, 15040), (3008, 9565), (3760, 7652), (3826, 7520)]