61668440

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1901}}^1$

素因数の和:2723

約数の個数: 32

約数和(自身を含む): 138998160

約数和(自身を除く): 77329720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 1901, 3244, 3802, 4055, 6488, 7604, 8110, 9505, 15208, 16220, 19010, 32440, 38020, 76040, 1541711, 3083422, 6166844, 7708555, 12333688, 15417110, 30834220, 61668440]

約数ペア:

[(1, 61668440), (2, 30834220), (4, 15417110), (5, 12333688), (8, 7708555), (10, 6166844), (20, 3083422), (40, 1541711), (811, 76040), (1622, 38020), (1901, 32440), (3244, 19010), (3802, 16220), (4055, 15208), (6488, 9505), (7604, 8110)]