261903740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{751}}^1$

素因数の和:867

約数の個数: 96

約数和(自身を含む): 654925824

約数和(自身を除く): 393022084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 53, 70, 94, 106, 140, 188, 212, 235, 265, 329, 371, 470, 530, 658, 742, 751, 940, 1060, 1316, 1484, 1502, 1645, 1855, 2491, 3004, 3290, 3710, 3755, 4982, 5257, 6580, 7420, 7510, 9964, 10514, 12455, 15020, 17437, 21028, 24910, 26285, 34874, 35297, 39803, 49820, 52570, 69748, 70594, 79606, 87185, 105140, 141188, 159212, 174370, 176485, 199015, 247079, 278621, 348740, 352970, 398030, 494158, 557242, 705940, 796060, 988316, 1114484, 1235395, 1393105, 1870741, 2470790, 2786210, 3741482, 4941580, 5572420, 7482964, 9353705, 13095187, 18707410, 26190374, 37414820, 52380748, 65475935, 130951870, 261903740]

約数ペア:

[(1, 261903740), (2, 130951870), (4, 65475935), (5, 52380748), (7, 37414820), (10, 26190374), (14, 18707410), (20, 13095187), (28, 9353705), (35, 7482964), (47, 5572420), (53, 4941580), (70, 3741482), (94, 2786210), (106, 2470790), (140, 1870741), (188, 1393105), (212, 1235395), (235, 1114484), (265, 988316), (329, 796060), (371, 705940), (470, 557242), (530, 494158), (658, 398030), (742, 352970), (751, 348740), (940, 278621), (1060, 247079), (1316, 199015), (1484, 176485), (1502, 174370), (1645, 159212), (1855, 141188), (2491, 105140), (3004, 87185), (3290, 79606), (3710, 70594), (3755, 69748), (4982, 52570), (5257, 49820), (6580, 39803), (7420, 35297), (7510, 34874), (9964, 26285), (10514, 24910), (12455, 21028), (15020, 17437)]