28178135

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{347}}^1$

素因数の和:610

約数の個数: 16

約数和(自身を含む): 34452000

約数和(自身を除く): 6273865

約数列:

[1, 5, 109, 149, 347, 545, 745, 1735, 16241, 37823, 51703, 81205, 189115, 258515, 5635627, 28178135]

約数ペア:

[(1, 28178135), (5, 5635627), (109, 258515), (149, 189115), (347, 81205), (545, 51703), (745, 37823), (1735, 16241)]