20136220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77447}}^1$

素因数の和:77469

約数の個数: 24

約数和(自身を含む): 45539424

約数和(自身を除く): 25403204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77447, 154894, 309788, 387235, 774470, 1006811, 1548940, 2013622, 4027244, 5034055, 10068110, 20136220]

約数ペア:

[(1, 20136220), (2, 10068110), (4, 5034055), (5, 4027244), (10, 2013622), (13, 1548940), (20, 1006811), (26, 774470), (52, 387235), (65, 309788), (130, 154894), (260, 77447)]