1297478780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4990303}}^1$

素因数の和:4990325

約数の個数: 24

約数和(自身を含む): 2934298752

約数和(自身を除く): 1636819972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4990303, 9980606, 19961212, 24951515, 49903030, 64873939, 99806060, 129747878, 259495756, 324369695, 648739390, 1297478780]

約数ペア:

[(1, 1297478780), (2, 648739390), (4, 324369695), (5, 259495756), (10, 129747878), (13, 99806060), (20, 64873939), (26, 49903030), (52, 24951515), (65, 19961212), (130, 9980606), (260, 4990303)]