51312880

素因数分解:

$2^4\times 5^1\times {\mathrm{641411}}^1$

素因数の和:641424

約数の個数: 20

約数和(自身を含む): 119302632

約数和(自身を除く): 67989752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641411, 1282822, 2565644, 3207055, 5131288, 6414110, 10262576, 12828220, 25656440, 51312880]

約数ペア:

[(1, 51312880), (2, 25656440), (4, 12828220), (5, 10262576), (8, 6414110), (10, 5131288), (16, 3207055), (20, 2565644), (40, 1282822), (80, 641411)]