2021140675

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 2695264000

約数和(自身を除く): 674123325

約数列:

[1, 5, 19, 25, 95, 103, 109, 379, 475, 515, 545, 1895, 1957, 2071, 2575, 2725, 7201, 9475, 9785, 10355, 11227, 36005, 39037, 41311, 48925, 51775, 56135, 180025, 195185, 206555, 213313, 280675, 741703, 784909, 975925, 1032775, 1066565, 3708515, 3924545, 4255033, 5332825, 18542575, 19622725, 21275165, 80845627, 106375825, 404228135, 2021140675]

約数ペア:

[(1, 2021140675), (5, 404228135), (19, 106375825), (25, 80845627), (95, 21275165), (103, 19622725), (109, 18542575), (379, 5332825), (475, 4255033), (515, 3924545), (545, 3708515), (1895, 1066565), (1957, 1032775), (2071, 975925), (2575, 784909), (2725, 741703), (7201, 280675), (9475, 213313), (9785, 206555), (10355, 195185), (11227, 180025), (36005, 56135), (39037, 51775), (41311, 48925)]