2012500805

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{18797}}^1$

素因数の和:18858

約数の個数: 48

約数和(自身を含む): 3085879680

約数和(自身を除く): 1073378875

約数列:

[1, 5, 7, 19, 23, 35, 49, 95, 115, 133, 161, 245, 437, 665, 805, 931, 1127, 2185, 3059, 4655, 5635, 15295, 18797, 21413, 93985, 107065, 131579, 357143, 432331, 657895, 921053, 1785715, 2161655, 2500001, 3026317, 4605265, 8214289, 12500005, 15131585, 17500007, 21184219, 41071445, 57500023, 87500035, 105921095, 287500115, 402500161, 2012500805]

約数ペア:

[(1, 2012500805), (5, 402500161), (7, 287500115), (19, 105921095), (23, 87500035), (35, 57500023), (49, 41071445), (95, 21184219), (115, 17500007), (133, 15131585), (161, 12500005), (245, 8214289), (437, 4605265), (665, 3026317), (805, 2500001), (931, 2161655), (1127, 1785715), (2185, 921053), (3059, 657895), (4655, 432331), (5635, 357143), (15295, 131579), (18797, 107065), (21413, 93985)]