209217680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{7949}}^1$

素因数の和:8016

約数の個数: 80

約数和(自身を含む): 567820800

約数和(自身を除く): 358603120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 752, 940, 1316, 1645, 1880, 2632, 3290, 3760, 5264, 6580, 7949, 13160, 15898, 26320, 31796, 39745, 55643, 63592, 79490, 111286, 127184, 158980, 222572, 278215, 317960, 373603, 445144, 556430, 635920, 747206, 890288, 1112860, 1494412, 1868015, 2225720, 2615221, 2988824, 3736030, 4451440, 5230442, 5977648, 7472060, 10460884, 13076105, 14944120, 20921768, 26152210, 29888240, 41843536, 52304420, 104608840, 209217680]

約数ペア:

[(1, 209217680), (2, 104608840), (4, 52304420), (5, 41843536), (7, 29888240), (8, 26152210), (10, 20921768), (14, 14944120), (16, 13076105), (20, 10460884), (28, 7472060), (35, 5977648), (40, 5230442), (47, 4451440), (56, 3736030), (70, 2988824), (80, 2615221), (94, 2225720), (112, 1868015), (140, 1494412), (188, 1112860), (235, 890288), (280, 747206), (329, 635920), (376, 556430), (470, 445144), (560, 373603), (658, 317960), (752, 278215), (940, 222572), (1316, 158980), (1645, 127184), (1880, 111286), (2632, 79490), (3290, 63592), (3760, 55643), (5264, 39745), (6580, 31796), (7949, 26320), (13160, 15898)]