22206920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{12911}}^1$

素因数の和:12965

約数の個数: 32

約数和(自身を含む): 51131520

約数和(自身を除く): 28924600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 12911, 25822, 51644, 64555, 103288, 129110, 258220, 516440, 555173, 1110346, 2220692, 2775865, 4441384, 5551730, 11103460, 22206920]

約数ペア:

[(1, 22206920), (2, 11103460), (4, 5551730), (5, 4441384), (8, 2775865), (10, 2220692), (20, 1110346), (40, 555173), (43, 516440), (86, 258220), (172, 129110), (215, 103288), (344, 64555), (430, 51644), (860, 25822), (1720, 12911)]