81592880

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4493}}^1$

素因数の和:4733

約数の個数: 40

約数和(自身を含む): 190581552

約数和(自身を除く): 108988672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1816, 2270, 3632, 4493, 4540, 8986, 9080, 17972, 18160, 22465, 35944, 44930, 71888, 89860, 179720, 359440, 1019911, 2039822, 4079644, 5099555, 8159288, 10199110, 16318576, 20398220, 40796440, 81592880]

約数ペア:

[(1, 81592880), (2, 40796440), (4, 20398220), (5, 16318576), (8, 10199110), (10, 8159288), (16, 5099555), (20, 4079644), (40, 2039822), (80, 1019911), (227, 359440), (454, 179720), (908, 89860), (1135, 71888), (1816, 44930), (2270, 35944), (3632, 22465), (4493, 18160), (4540, 17972), (8986, 9080)]