205661960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1753}}^1$

素因数の和:2190

約数の個数: 64

約数和(自身を含む): 530409600

約数和(自身を除く): 324747640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 419, 838, 1676, 1753, 2095, 2933, 3352, 3506, 4190, 5866, 7012, 8380, 8765, 11732, 12271, 14024, 14665, 16760, 17530, 23464, 24542, 29330, 35060, 49084, 58660, 61355, 70120, 98168, 117320, 122710, 245420, 490840, 734507, 1469014, 2938028, 3672535, 5141549, 5876056, 7345070, 10283098, 14690140, 20566196, 25707745, 29380280, 41132392, 51415490, 102830980, 205661960]

約数ペア:

[(1, 205661960), (2, 102830980), (4, 51415490), (5, 41132392), (7, 29380280), (8, 25707745), (10, 20566196), (14, 14690140), (20, 10283098), (28, 7345070), (35, 5876056), (40, 5141549), (56, 3672535), (70, 2938028), (140, 1469014), (280, 734507), (419, 490840), (838, 245420), (1676, 122710), (1753, 117320), (2095, 98168), (2933, 70120), (3352, 61355), (3506, 58660), (4190, 49084), (5866, 35060), (7012, 29330), (8380, 24542), (8765, 23464), (11732, 17530), (12271, 16760), (14024, 14665)]