128506638

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{487}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 295142400

約数和(自身を除く): 166635762

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 199, 221, 398, 442, 487, 597, 663, 974, 1194, 1326, 1461, 2587, 2922, 3383, 5174, 6331, 6766, 7761, 8279, 10149, 12662, 15522, 16558, 18993, 20298, 24837, 37986, 43979, 49674, 87958, 96913, 107627, 131937, 193826, 215254, 263874, 290739, 322881, 581478, 645762, 1259869, 1647521, 2519738, 3295042, 3779607, 4942563, 7559214, 9885126, 21417773, 42835546, 64253319, 128506638]

約数ペア:

[(1, 128506638), (2, 64253319), (3, 42835546), (6, 21417773), (13, 9885126), (17, 7559214), (26, 4942563), (34, 3779607), (39, 3295042), (51, 2519738), (78, 1647521), (102, 1259869), (199, 645762), (221, 581478), (398, 322881), (442, 290739), (487, 263874), (597, 215254), (663, 193826), (974, 131937), (1194, 107627), (1326, 96913), (1461, 87958), (2587, 49674), (2922, 43979), (3383, 37986), (5174, 24837), (6331, 20298), (6766, 18993), (7761, 16558), (8279, 15522), (10149, 12662)]