11886920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6911}}^1$

素因数の和:6965

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 15484600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 6911, 13822, 27644, 34555, 55288, 69110, 138220, 276440, 297173, 594346, 1188692, 1485865, 2377384, 2971730, 5943460, 11886920]

約数ペア:

[(1, 11886920), (2, 5943460), (4, 2971730), (5, 2377384), (8, 1485865), (10, 1188692), (20, 594346), (40, 297173), (43, 276440), (86, 138220), (172, 69110), (215, 55288), (344, 34555), (430, 27644), (860, 13822), (1720, 6911)]