19571820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2381}}^1$

素因数の和:2530

約数の個数: 48

約数和(自身を含む): 55224288

約数和(自身を除く): 35652468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2381, 2740, 4110, 4762, 7143, 8220, 9524, 11905, 14286, 23810, 28572, 35715, 47620, 71430, 142860, 326197, 652394, 978591, 1304788, 1630985, 1957182, 3261970, 3914364, 4892955, 6523940, 9785910, 19571820]

約数ペア:

[(1, 19571820), (2, 9785910), (3, 6523940), (4, 4892955), (5, 3914364), (6, 3261970), (10, 1957182), (12, 1630985), (15, 1304788), (20, 978591), (30, 652394), (60, 326197), (137, 142860), (274, 71430), (411, 47620), (548, 35715), (685, 28572), (822, 23810), (1370, 14286), (1644, 11905), (2055, 9524), (2381, 8220), (2740, 7143), (4110, 4762)]