28681755

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 47476800

約数和(自身を除く): 18795045

約数列:

[1, 3, 5, 15, 41, 123, 149, 205, 313, 447, 615, 745, 939, 1565, 2235, 4695, 6109, 12833, 18327, 30545, 38499, 46637, 64165, 91635, 139911, 192495, 233185, 699555, 1912117, 5736351, 9560585, 28681755]

約数ペア:

[(1, 28681755), (3, 9560585), (5, 5736351), (15, 1912117), (41, 699555), (123, 233185), (149, 192495), (205, 139911), (313, 91635), (447, 64165), (615, 46637), (745, 38499), (939, 30545), (1565, 18327), (2235, 12833), (4695, 6109)]