178995999

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 304819200

約数和(自身を除く): 125823201

約数列:

[1, 3, 7, 13, 21, 39, 53, 89, 91, 139, 159, 267, 273, 371, 417, 623, 689, 973, 1113, 1157, 1807, 1869, 2067, 2919, 3471, 4717, 4823, 5421, 7367, 8099, 12371, 12649, 14151, 14469, 22101, 24297, 33019, 37113, 37947, 51569, 61321, 86597, 95771, 99057, 154707, 160823, 183963, 259791, 287313, 429247, 482469, 655663, 670397, 1125761, 1287741, 1966989, 2011191, 3377283, 4589641, 8523619, 13768923, 25570857, 59665333, 178995999]

約数ペア:

[(1, 178995999), (3, 59665333), (7, 25570857), (13, 13768923), (21, 8523619), (39, 4589641), (53, 3377283), (89, 2011191), (91, 1966989), (139, 1287741), (159, 1125761), (267, 670397), (273, 655663), (371, 482469), (417, 429247), (623, 287313), (689, 259791), (973, 183963), (1113, 160823), (1157, 154707), (1807, 99057), (1869, 95771), (2067, 86597), (2919, 61321), (3471, 51569), (4717, 37947), (4823, 37113), (5421, 33019), (7367, 24297), (8099, 22101), (12371, 14469), (12649, 14151)]