205486905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61987}}^1$

素因数の和:62025

約数の個数: 32

約数和(自身を含む): 374903424

約数和(自身を除く): 169416519

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 61987, 185961, 309935, 805831, 929805, 1053779, 2417493, 3161337, 4029155, 5268895, 12087465, 13699127, 15806685, 41097381, 68495635, 205486905]

約数ペア:

[(1, 205486905), (3, 68495635), (5, 41097381), (13, 15806685), (15, 13699127), (17, 12087465), (39, 5268895), (51, 4029155), (65, 3161337), (85, 2417493), (195, 1053779), (221, 929805), (255, 805831), (663, 309935), (1105, 185961), (3315, 61987)]