15661640

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3083}}^1$

素因数の和:3221

約数の個数: 32

約数和(自身を含む): 35527680

約数和(自身を除く): 19866040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3083, 5080, 6166, 12332, 15415, 24664, 30830, 61660, 123320, 391541, 783082, 1566164, 1957705, 3132328, 3915410, 7830820, 15661640]

約数ペア:

[(1, 15661640), (2, 7830820), (4, 3915410), (5, 3132328), (8, 1957705), (10, 1566164), (20, 783082), (40, 391541), (127, 123320), (254, 61660), (508, 30830), (635, 24664), (1016, 15415), (1270, 12332), (2540, 6166), (3083, 5080)]