213481520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{8111}}^1$

素因数の和:8178

約数の個数: 80

約数和(自身を含む): 579391488

約数和(自身を除く): 365909968

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, 8111, 13160, 16222, 26320, 32444, 40555, 56777, 64888, 81110, 113554, 129776, 162220, 227108, 283885, 324440, 381217, 454216, 567770, 648880, 762434, 908432, 1135540, 1524868, 1906085, 2271080, 2668519, 3049736, 3812170, 4542160, 5337038, 6099472, 7624340, 10674076, 13342595, 15248680, 21348152, 26685190, 30497360, 42696304, 53370380, 106740760, 213481520]

約数ペア:

[(1, 213481520), (2, 106740760), (4, 53370380), (5, 42696304), (7, 30497360), (8, 26685190), (10, 21348152), (14, 15248680), (16, 13342595), (20, 10674076), (28, 7624340), (35, 6099472), (40, 5337038), (47, 4542160), (56, 3812170), (70, 3049736), (80, 2668519), (94, 2271080), (112, 1906085), (140, 1524868), (188, 1135540), (235, 908432), (280, 762434), (329, 648880), (376, 567770), (470, 454216), (560, 381217), (658, 324440), (752, 283885), (940, 227108), (1316, 162220), (1645, 129776), (1880, 113554), (2632, 81110), (3290, 64888), (3760, 56777), (5264, 40555), (6580, 32444), (8111, 26320), (13160, 16222)]