28621180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204437}}^1$

素因数の和:204453

約数の個数: 24

約数和(自身を含む): 68691168

約数和(自身を除く): 40069988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204437, 408874, 817748, 1022185, 1431059, 2044370, 2862118, 4088740, 5724236, 7155295, 14310590, 28621180]

約数ペア:

[(1, 28621180), (2, 14310590), (4, 7155295), (5, 5724236), (7, 4088740), (10, 2862118), (14, 2044370), (20, 1431059), (28, 1022185), (35, 817748), (70, 408874), (140, 204437)]