20396975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1867}}^1$

素因数の和:1919

約数の個数: 24

約数和(自身を含む): 27795840

約数和(自身を除く): 7398865

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 1867, 2185, 9335, 10925, 35473, 42941, 46675, 177365, 214705, 815879, 886825, 1073525, 4079395, 20396975]

約数ペア:

[(1, 20396975), (5, 4079395), (19, 1073525), (23, 886825), (25, 815879), (95, 214705), (115, 177365), (437, 46675), (475, 42941), (575, 35473), (1867, 10925), (2185, 9335)]