20792440

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{4093}}^1$

素因数の和:4231

約数の個数: 32

約数和(自身を含む): 47162880

約数和(自身を除く): 26370440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 4093, 5080, 8186, 16372, 20465, 32744, 40930, 81860, 163720, 519811, 1039622, 2079244, 2599055, 4158488, 5198110, 10396220, 20792440]

約数ペア:

[(1, 20792440), (2, 10396220), (4, 5198110), (5, 4158488), (8, 2599055), (10, 2079244), (20, 1039622), (40, 519811), (127, 163720), (254, 81860), (508, 40930), (635, 32744), (1016, 20465), (1270, 16372), (2540, 8186), (4093, 5080)]