19790680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5437}}^1$

素因数の和:5468

約数の個数: 64

約数和(自身を含む): 54815040

約数和(自身を除く): 35024360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5437, 10874, 21748, 27185, 38059, 43496, 54370, 70681, 76118, 108740, 141362, 152236, 190295, 217480, 282724, 304472, 353405, 380590, 494767, 565448, 706810, 761180, 989534, 1413620, 1522360, 1979068, 2473835, 2827240, 3958136, 4947670, 9895340, 19790680]

約数ペア:

[(1, 19790680), (2, 9895340), (4, 4947670), (5, 3958136), (7, 2827240), (8, 2473835), (10, 1979068), (13, 1522360), (14, 1413620), (20, 989534), (26, 761180), (28, 706810), (35, 565448), (40, 494767), (52, 380590), (56, 353405), (65, 304472), (70, 282724), (91, 217480), (104, 190295), (130, 152236), (140, 141362), (182, 108740), (260, 76118), (280, 70681), (364, 54370), (455, 43496), (520, 38059), (728, 27185), (910, 21748), (1820, 10874), (3640, 5437)]