28680876

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:324

約数の個数: 108

約数和(自身を含む): 85896720

約数和(自身を除く): 57215844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 71, 84, 98, 126, 142, 147, 196, 213, 229, 252, 284, 294, 426, 441, 458, 497, 588, 639, 687, 852, 882, 916, 994, 1278, 1374, 1491, 1603, 1764, 1988, 2061, 2556, 2748, 2982, 3206, 3479, 4122, 4473, 4809, 5964, 6412, 6958, 8244, 8946, 9618, 10437, 11221, 13916, 14427, 16259, 17892, 19236, 20874, 22442, 28854, 31311, 32518, 33663, 41748, 44884, 48777, 57708, 62622, 65036, 67326, 97554, 100989, 113813, 125244, 134652, 146331, 195108, 201978, 227626, 292662, 341439, 403956, 455252, 585324, 682878, 796691, 1024317, 1365756, 1593382, 2048634, 2390073, 3186764, 4097268, 4780146, 7170219, 9560292, 14340438, 28680876]

約数ペア:

[(1, 28680876), (2, 14340438), (3, 9560292), (4, 7170219), (6, 4780146), (7, 4097268), (9, 3186764), (12, 2390073), (14, 2048634), (18, 1593382), (21, 1365756), (28, 1024317), (36, 796691), (42, 682878), (49, 585324), (63, 455252), (71, 403956), (84, 341439), (98, 292662), (126, 227626), (142, 201978), (147, 195108), (196, 146331), (213, 134652), (229, 125244), (252, 113813), (284, 100989), (294, 97554), (426, 67326), (441, 65036), (458, 62622), (497, 57708), (588, 48777), (639, 44884), (687, 41748), (852, 33663), (882, 32518), (916, 31311), (994, 28854), (1278, 22442), (1374, 20874), (1491, 19236), (1603, 17892), (1764, 16259), (1988, 14427), (2061, 13916), (2556, 11221), (2748, 10437), (2982, 9618), (3206, 8946), (3479, 8244), (4122, 6958), (4473, 6412), (4809, 5964)]