38978660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{643}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 93910656

約数和(自身を除く): 54931996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 433, 643, 866, 1286, 1732, 2165, 2572, 3031, 3215, 4330, 4501, 6062, 6430, 8660, 9002, 12124, 12860, 15155, 18004, 22505, 30310, 45010, 60620, 90020, 278419, 556838, 1113676, 1392095, 1948933, 2784190, 3897866, 5568380, 7795732, 9744665, 19489330, 38978660]

約数ペア:

[(1, 38978660), (2, 19489330), (4, 9744665), (5, 7795732), (7, 5568380), (10, 3897866), (14, 2784190), (20, 1948933), (28, 1392095), (35, 1113676), (70, 556838), (140, 278419), (433, 90020), (643, 60620), (866, 45010), (1286, 30310), (1732, 22505), (2165, 18004), (2572, 15155), (3031, 12860), (3215, 12124), (4330, 9002), (4501, 8660), (6062, 6430)]