261463968

素因数分解:

$2^5\times 3^2\times {\mathrm{109}}^1\times {\mathrm{8329}}^1$

素因数の和:8454

約数の個数: 72

約数和(自身を含む): 750449700

約数和(自身を除く): 488985732

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 109, 144, 218, 288, 327, 436, 654, 872, 981, 1308, 1744, 1962, 2616, 3488, 3924, 5232, 7848, 8329, 10464, 15696, 16658, 24987, 31392, 33316, 49974, 66632, 74961, 99948, 133264, 149922, 199896, 266528, 299844, 399792, 599688, 799584, 907861, 1199376, 1815722, 2398752, 2723583, 3631444, 5447166, 7262888, 8170749, 10894332, 14525776, 16341498, 21788664, 29051552, 32682996, 43577328, 65365992, 87154656, 130731984, 261463968]

約数ペア:

[(1, 261463968), (2, 130731984), (3, 87154656), (4, 65365992), (6, 43577328), (8, 32682996), (9, 29051552), (12, 21788664), (16, 16341498), (18, 14525776), (24, 10894332), (32, 8170749), (36, 7262888), (48, 5447166), (72, 3631444), (96, 2723583), (109, 2398752), (144, 1815722), (218, 1199376), (288, 907861), (327, 799584), (436, 599688), (654, 399792), (872, 299844), (981, 266528), (1308, 199896), (1744, 149922), (1962, 133264), (2616, 99948), (3488, 74961), (3924, 66632), (5232, 49974), (7848, 33316), (8329, 31392), (10464, 24987), (15696, 16658)]