21766640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{827}}^1$

素因数の和:894

約数の個数: 80

約数和(自身を含む): 59139072

約数和(自身を除く): 37372432

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, 827, 940, 1316, 1645, 1654, 1880, 2632, 3290, 3308, 3760, 4135, 5264, 5789, 6580, 6616, 8270, 11578, 13160, 13232, 16540, 23156, 26320, 28945, 33080, 38869, 46312, 57890, 66160, 77738, 92624, 115780, 155476, 194345, 231560, 272083, 310952, 388690, 463120, 544166, 621904, 777380, 1088332, 1360415, 1554760, 2176664, 2720830, 3109520, 4353328, 5441660, 10883320, 21766640]

約数ペア:

[(1, 21766640), (2, 10883320), (4, 5441660), (5, 4353328), (7, 3109520), (8, 2720830), (10, 2176664), (14, 1554760), (16, 1360415), (20, 1088332), (28, 777380), (35, 621904), (40, 544166), (47, 463120), (56, 388690), (70, 310952), (80, 272083), (94, 231560), (112, 194345), (140, 155476), (188, 115780), (235, 92624), (280, 77738), (329, 66160), (376, 57890), (470, 46312), (560, 38869), (658, 33080), (752, 28945), (827, 26320), (940, 23156), (1316, 16540), (1645, 13232), (1654, 13160), (1880, 11578), (2632, 8270), (3290, 6616), (3308, 6580), (3760, 5789), (4135, 5264)]