641235745

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 816625152

約数和(自身を除く): 175389407

約数列:

[1, 5, 23, 115, 167, 173, 193, 835, 865, 965, 3841, 3979, 4439, 19205, 19895, 22195, 28891, 32231, 33389, 144455, 161155, 166945, 664493, 741313, 767947, 3322465, 3706565, 3839735, 5575963, 27879815, 128247149, 641235745]

約数ペア:

[(1, 641235745), (5, 128247149), (23, 27879815), (115, 5575963), (167, 3839735), (173, 3706565), (193, 3322465), (835, 767947), (865, 741313), (965, 664493), (3841, 166945), (3979, 161155), (4439, 144455), (19205, 33389), (19895, 32231), (22195, 28891)]