28026820

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{5171}}^1$

素因数の和:5451

約数の個数: 24

約数和(自身を含む): 59084928

約数和(自身を除く): 31058108

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5171, 5420, 10342, 20684, 25855, 51710, 103420, 1401341, 2802682, 5605364, 7006705, 14013410, 28026820]

約数ペア:

[(1, 28026820), (2, 14013410), (4, 7006705), (5, 5605364), (10, 2802682), (20, 1401341), (271, 103420), (542, 51710), (1084, 25855), (1355, 20684), (2710, 10342), (5171, 5420)]