777920255

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{3361}}^1$

素因数の和:3779

約数の個数: 32

約数和(自身を含む): 1132859520

約数和(自身を除く): 354939265

約数列:

[1, 5, 7, 17, 35, 85, 119, 389, 595, 1945, 2723, 3361, 6613, 13615, 16805, 23527, 33065, 46291, 57137, 117635, 231455, 285685, 399959, 1307429, 1999795, 6537145, 9152003, 22226293, 45760015, 111131465, 155584051, 777920255]

約数ペア:

[(1, 777920255), (5, 155584051), (7, 111131465), (17, 45760015), (35, 22226293), (85, 9152003), (119, 6537145), (389, 1999795), (595, 1307429), (1945, 399959), (2723, 285685), (3361, 231455), (6613, 117635), (13615, 57137), (16805, 46291), (23527, 33065)]