28306840

素因数分解:

$2^3\times 5^1\times {\mathrm{707671}}^1$

素因数の和:707682

約数の個数: 16

約数和(自身を含む): 63690480

約数和(自身を除く): 35383640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 707671, 1415342, 2830684, 3538355, 5661368, 7076710, 14153420, 28306840]

約数ペア:

[(1, 28306840), (2, 14153420), (4, 7076710), (5, 5661368), (8, 3538355), (10, 2830684), (20, 1415342), (40, 707671)]