28276220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{201973}}^1$

素因数の和:201989

約数の個数: 24

約数和(自身を含む): 67863264

約数和(自身を除く): 39587044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 201973, 403946, 807892, 1009865, 1413811, 2019730, 2827622, 4039460, 5655244, 7069055, 14138110, 28276220]

約数ペア:

[(1, 28276220), (2, 14138110), (4, 7069055), (5, 5655244), (7, 4039460), (10, 2827622), (14, 2019730), (20, 1413811), (28, 1009865), (35, 807892), (70, 403946), (140, 201973)]