138599720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1787}}^1$

素因数の和:2082

約数の個数: 64

約数和(自身を含む): 357886080

約数和(自身を除く): 219286360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 277, 280, 554, 1108, 1385, 1787, 1939, 2216, 2770, 3574, 3878, 5540, 7148, 7756, 8935, 9695, 11080, 12509, 14296, 15512, 17870, 19390, 25018, 35740, 38780, 50036, 62545, 71480, 77560, 100072, 125090, 250180, 494999, 500360, 989998, 1979996, 2474995, 3464993, 3959992, 4949990, 6929986, 9899980, 13859972, 17324965, 19799960, 27719944, 34649930, 69299860, 138599720]

約数ペア:

[(1, 138599720), (2, 69299860), (4, 34649930), (5, 27719944), (7, 19799960), (8, 17324965), (10, 13859972), (14, 9899980), (20, 6929986), (28, 4949990), (35, 3959992), (40, 3464993), (56, 2474995), (70, 1979996), (140, 989998), (277, 500360), (280, 494999), (554, 250180), (1108, 125090), (1385, 100072), (1787, 77560), (1939, 71480), (2216, 62545), (2770, 50036), (3574, 38780), (3878, 35740), (5540, 25018), (7148, 19390), (7756, 17870), (8935, 15512), (9695, 14296), (11080, 12509)]