40840142

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 71928000

約数和(自身を除く): 31087858

約数列:

[1, 2, 7, 14, 73, 89, 146, 178, 449, 511, 623, 898, 1022, 1246, 3143, 6286, 6497, 12994, 32777, 39961, 45479, 65554, 79922, 90958, 229439, 279727, 458878, 559454, 2917153, 5834306, 20420071, 40840142]

約数ペア:

[(1, 40840142), (2, 20420071), (7, 5834306), (14, 2917153), (73, 559454), (89, 458878), (146, 279727), (178, 229439), (449, 90958), (511, 79922), (623, 65554), (898, 45479), (1022, 39961), (1246, 32777), (3143, 12994), (6286, 6497)]