20199561328

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{9940729}}^1$

素因数の和:9940864

約数の個数: 20

約数和(自身を含む): 39444816640

約数和(自身を除く): 19245255312

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 9940729, 19881458, 39762916, 79525832, 159051664, 1262472583, 2524945166, 5049890332, 10099780664, 20199561328]

約数ペア:

[(1, 20199561328), (2, 10099780664), (4, 5049890332), (8, 2524945166), (16, 1262472583), (127, 159051664), (254, 79525832), (508, 39762916), (1016, 19881458), (2032, 9940729)]