20697320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{383}}^1$

素因数の和:594

約数の個数: 64

約数和(自身を含む): 53637120

約数和(自身を除く): 32939800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 193, 280, 383, 386, 766, 772, 965, 1351, 1532, 1544, 1915, 1930, 2681, 2702, 3064, 3830, 3860, 5362, 5404, 6755, 7660, 7720, 10724, 10808, 13405, 13510, 15320, 21448, 26810, 27020, 53620, 54040, 73919, 107240, 147838, 295676, 369595, 517433, 591352, 739190, 1034866, 1478380, 2069732, 2587165, 2956760, 4139464, 5174330, 10348660, 20697320]

約数ペア:

[(1, 20697320), (2, 10348660), (4, 5174330), (5, 4139464), (7, 2956760), (8, 2587165), (10, 2069732), (14, 1478380), (20, 1034866), (28, 739190), (35, 591352), (40, 517433), (56, 369595), (70, 295676), (140, 147838), (193, 107240), (280, 73919), (383, 54040), (386, 53620), (766, 27020), (772, 26810), (965, 21448), (1351, 15320), (1532, 13510), (1544, 13405), (1915, 10808), (1930, 10724), (2681, 7720), (2702, 7660), (3064, 6755), (3830, 5404), (3860, 5362)]