28224820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108557}}^1$

素因数の和:108579

約数の個数: 24

約数和(自身を含む): 63832104

約数和(自身を除く): 35607284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108557, 217114, 434228, 542785, 1085570, 1411241, 2171140, 2822482, 5644964, 7056205, 14112410, 28224820]

約数ペア:

[(1, 28224820), (2, 14112410), (4, 7056205), (5, 5644964), (10, 2822482), (13, 2171140), (20, 1411241), (26, 1085570), (52, 542785), (65, 434228), (130, 217114), (260, 108557)]