728505239

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{16063}}^1$

素因数の和:16131

約数の個数: 32

約数和(自身を含む): 986972160

約数和(自身を除く): 258466921

約数列:

[1, 7, 11, 19, 31, 77, 133, 209, 217, 341, 589, 1463, 2387, 4123, 6479, 16063, 45353, 112441, 176693, 305197, 497953, 1236851, 2136379, 3357167, 3485671, 5477483, 9461107, 23500169, 38342381, 66227749, 104072177, 728505239]

約数ペア:

[(1, 728505239), (7, 104072177), (11, 66227749), (19, 38342381), (31, 23500169), (77, 9461107), (133, 5477483), (209, 3485671), (217, 3357167), (341, 2136379), (589, 1236851), (1463, 497953), (2387, 305197), (4123, 176693), (6479, 112441), (16063, 45353)]