645221136

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{3911}}^1$

素因数の和:4420

約数の個数: 80

約数和(自身を含む): 1909306368

約数和(自身を除く): 1264085232

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 491, 982, 1473, 1964, 2946, 3437, 3911, 3928, 5892, 6874, 7822, 7856, 10311, 11733, 11784, 13748, 15644, 20622, 23466, 23568, 27377, 27496, 31288, 41244, 46932, 54754, 54992, 62576, 82131, 82488, 93864, 109508, 164262, 164976, 187728, 219016, 328524, 438032, 657048, 1314096, 1920301, 3840602, 5760903, 7681204, 11521806, 13442107, 15362408, 23043612, 26884214, 30724816, 40326321, 46087224, 53768428, 80652642, 92174448, 107536856, 161305284, 215073712, 322610568, 645221136]

約数ペア:

[(1, 645221136), (2, 322610568), (3, 215073712), (4, 161305284), (6, 107536856), (7, 92174448), (8, 80652642), (12, 53768428), (14, 46087224), (16, 40326321), (21, 30724816), (24, 26884214), (28, 23043612), (42, 15362408), (48, 13442107), (56, 11521806), (84, 7681204), (112, 5760903), (168, 3840602), (336, 1920301), (491, 1314096), (982, 657048), (1473, 438032), (1964, 328524), (2946, 219016), (3437, 187728), (3911, 164976), (3928, 164262), (5892, 109508), (6874, 93864), (7822, 82488), (7856, 82131), (10311, 62576), (11733, 54992), (11784, 54754), (13748, 46932), (15644, 41244), (20622, 31288), (23466, 27496), (23568, 27377)]