1331191660

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{408341}}^1$

素因数の和:408513

約数の個数: 24

約数和(自身を含む): 2812659696

約数和(自身を除く): 1481468036

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 408341, 816682, 1633364, 2041705, 4083410, 8166820, 66559583, 133119166, 266238332, 332797915, 665595830, 1331191660]

約数ペア:

[(1, 1331191660), (2, 665595830), (4, 332797915), (5, 266238332), (10, 133119166), (20, 66559583), (163, 8166820), (326, 4083410), (652, 2041705), (815, 1633364), (1630, 816682), (3260, 408341)]