7201220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27697}}^1$

素因数の和:27719

約数の個数: 24

約数和(自身を含む): 16286424

約数和(自身を除く): 9085204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 27697, 55394, 110788, 138485, 276970, 360061, 553940, 720122, 1440244, 1800305, 3600610, 7201220]

約数ペア:

[(1, 7201220), (2, 3600610), (4, 1800305), (5, 1440244), (10, 720122), (13, 553940), (20, 360061), (26, 276970), (52, 138485), (65, 110788), (130, 55394), (260, 27697)]