197500520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1759}}^1$

素因数の和:2178

約数の個数: 64

約数和(自身を含む): 509414400

約数和(自身を除く): 311913880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 401, 802, 1604, 1759, 2005, 2807, 3208, 3518, 4010, 5614, 7036, 8020, 8795, 11228, 12313, 14035, 14072, 16040, 17590, 22456, 24626, 28070, 35180, 49252, 56140, 61565, 70360, 98504, 112280, 123130, 246260, 492520, 705359, 1410718, 2821436, 3526795, 4937513, 5642872, 7053590, 9875026, 14107180, 19750052, 24687565, 28214360, 39500104, 49375130, 98750260, 197500520]

約数ペア:

[(1, 197500520), (2, 98750260), (4, 49375130), (5, 39500104), (7, 28214360), (8, 24687565), (10, 19750052), (14, 14107180), (20, 9875026), (28, 7053590), (35, 5642872), (40, 4937513), (56, 3526795), (70, 2821436), (140, 1410718), (280, 705359), (401, 492520), (802, 246260), (1604, 123130), (1759, 112280), (2005, 98504), (2807, 70360), (3208, 61565), (3518, 56140), (4010, 49252), (5614, 35180), (7036, 28070), (8020, 24626), (8795, 22456), (11228, 17590), (12313, 16040), (14035, 14072)]