19968095

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 28753920

約数和(自身を除く): 8785825

約数列:

[1, 5, 7, 29, 35, 103, 145, 191, 203, 515, 721, 955, 1015, 1337, 2987, 3605, 5539, 6685, 14935, 19673, 20909, 27695, 38773, 98365, 104545, 137711, 193865, 570517, 688555, 2852585, 3993619, 19968095]

約数ペア:

[(1, 19968095), (5, 3993619), (7, 2852585), (29, 688555), (35, 570517), (103, 193865), (145, 137711), (191, 104545), (203, 98365), (515, 38773), (721, 27695), (955, 20909), (1015, 19673), (1337, 14935), (2987, 6685), (3605, 5539)]