28657524

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 80269056

約数和(自身を除く): 51611532

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 53, 82, 84, 106, 123, 157, 159, 164, 212, 246, 287, 314, 318, 371, 471, 492, 574, 628, 636, 742, 861, 942, 1099, 1113, 1148, 1484, 1722, 1884, 2173, 2198, 2226, 3297, 3444, 4346, 4396, 4452, 6437, 6519, 6594, 8321, 8692, 12874, 13038, 13188, 15211, 16642, 19311, 24963, 25748, 26076, 30422, 33284, 38622, 45059, 45633, 49926, 58247, 60844, 77244, 90118, 91266, 99852, 116494, 135177, 174741, 180236, 182532, 232988, 270354, 341161, 349482, 540708, 682322, 698964, 1023483, 1364644, 2046966, 2388127, 4093932, 4776254, 7164381, 9552508, 14328762, 28657524]

約数ペア:

[(1, 28657524), (2, 14328762), (3, 9552508), (4, 7164381), (6, 4776254), (7, 4093932), (12, 2388127), (14, 2046966), (21, 1364644), (28, 1023483), (41, 698964), (42, 682322), (53, 540708), (82, 349482), (84, 341161), (106, 270354), (123, 232988), (157, 182532), (159, 180236), (164, 174741), (212, 135177), (246, 116494), (287, 99852), (314, 91266), (318, 90118), (371, 77244), (471, 60844), (492, 58247), (574, 49926), (628, 45633), (636, 45059), (742, 38622), (861, 33284), (942, 30422), (1099, 26076), (1113, 25748), (1148, 24963), (1484, 19311), (1722, 16642), (1884, 15211), (2173, 13188), (2198, 13038), (2226, 12874), (3297, 8692), (3444, 8321), (4346, 6594), (4396, 6519), (4452, 6437)]