20350005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1321}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 35535360

約数和(自身を除く): 15185355

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 237, 395, 1027, 1185, 1321, 3081, 3963, 5135, 6605, 15405, 17173, 19815, 51519, 85865, 104359, 257595, 313077, 521795, 1356667, 1565385, 4070001, 6783335, 20350005]

約数ペア:

[(1, 20350005), (3, 6783335), (5, 4070001), (13, 1565385), (15, 1356667), (39, 521795), (65, 313077), (79, 257595), (195, 104359), (237, 85865), (395, 51519), (1027, 19815), (1185, 17173), (1321, 15405), (3081, 6605), (3963, 5135)]