1285956

素因数分解:

$2^2\times 3^8\times 7^2$

素因数の和:42

約数の個数: 81

約数和(自身を含む): 3926559

約数和(自身を除く): 2640603

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 243, 252, 294, 324, 378, 441, 486, 567, 588, 729, 756, 882, 972, 1134, 1323, 1458, 1701, 1764, 2187, 2268, 2646, 2916, 3402, 3969, 4374, 5103, 5292, 6561, 6804, 7938, 8748, 10206, 11907, 13122, 15309, 15876, 20412, 23814, 26244, 30618, 35721, 45927, 47628, 61236, 71442, 91854, 107163, 142884, 183708, 214326, 321489, 428652, 642978, 1285956]

約数ペア:

[(1, 1285956), (2, 642978), (3, 428652), (4, 321489), (6, 214326), (7, 183708), (9, 142884), (12, 107163), (14, 91854), (18, 71442), (21, 61236), (27, 47628), (28, 45927), (36, 35721), (42, 30618), (49, 26244), (54, 23814), (63, 20412), (81, 15876), (84, 15309), (98, 13122), (108, 11907), (126, 10206), (147, 8748), (162, 7938), (189, 6804), (196, 6561), (243, 5292), (252, 5103), (294, 4374), (324, 3969), (378, 3402), (441, 2916), (486, 2646), (567, 2268), (588, 2187), (729, 1764), (756, 1701), (882, 1458), (972, 1323)]