20338020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37663}}^1$

素因数の和:37681

約数の個数: 48

約数和(自身を含む): 63275520

約数和(自身を除く): 42937500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 37663, 75326, 112989, 150652, 188315, 225978, 338967, 376630, 451956, 564945, 677934, 753260, 1016901, 1129890, 1355868, 1694835, 2033802, 2259780, 3389670, 4067604, 5084505, 6779340, 10169010, 20338020]

約数ペア:

[(1, 20338020), (2, 10169010), (3, 6779340), (4, 5084505), (5, 4067604), (6, 3389670), (9, 2259780), (10, 2033802), (12, 1694835), (15, 1355868), (18, 1129890), (20, 1016901), (27, 753260), (30, 677934), (36, 564945), (45, 451956), (54, 376630), (60, 338967), (90, 225978), (108, 188315), (135, 150652), (180, 112989), (270, 75326), (540, 37663)]