90457720

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{10141}}^1$

素因数の和:10375

約数の個数: 32

約数和(自身を含む): 204462720

約数和(自身を除く): 114005000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 10141, 20282, 40564, 50705, 81128, 101410, 202820, 405640, 2261443, 4522886, 9045772, 11307215, 18091544, 22614430, 45228860, 90457720]

約数ペア:

[(1, 90457720), (2, 45228860), (4, 22614430), (5, 18091544), (8, 11307215), (10, 9045772), (20, 4522886), (40, 2261443), (223, 405640), (446, 202820), (892, 101410), (1115, 81128), (1784, 50705), (2230, 40564), (4460, 20282), (8920, 10141)]