19780400642

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{20161}}^1\times {\mathrm{25819}}^1$

素因数の和:46001

約数の個数: 16

約数和(自身を含む): 31234970400

約数和(自身を除く): 11454569758

約数列:

[1, 2, 19, 38, 20161, 25819, 40322, 51638, 383059, 490561, 766118, 981122, 520536859, 1041073718, 9890200321, 19780400642]

約数ペア:

[(1, 19780400642), (2, 9890200321), (19, 1041073718), (38, 520536859), (20161, 981122), (25819, 766118), (40322, 490561), (51638, 383059)]