28552420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{569}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 65021040

約数和(自身を除く): 36468620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 193, 260, 386, 569, 772, 965, 1138, 1930, 2276, 2509, 2845, 3860, 5018, 5690, 7397, 10036, 11380, 12545, 14794, 25090, 29588, 36985, 50180, 73970, 109817, 147940, 219634, 439268, 549085, 1098170, 1427621, 2196340, 2855242, 5710484, 7138105, 14276210, 28552420]

約数ペア:

[(1, 28552420), (2, 14276210), (4, 7138105), (5, 5710484), (10, 2855242), (13, 2196340), (20, 1427621), (26, 1098170), (52, 549085), (65, 439268), (130, 219634), (193, 147940), (260, 109817), (386, 73970), (569, 50180), (772, 36985), (965, 29588), (1138, 25090), (1930, 14794), (2276, 12545), (2509, 11380), (2845, 10036), (3860, 7397), (5018, 5690)]