20520252

素因数分解:

$2^2\times 3^2\times {\mathrm{647}}^1\times {\mathrm{881}}^1$

素因数の和:1538

約数の個数: 36

約数和(自身を含む): 52009776

約数和(自身を除く): 31489524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 647, 881, 1294, 1762, 1941, 2588, 2643, 3524, 3882, 5286, 5823, 7764, 7929, 10572, 11646, 15858, 23292, 31716, 570007, 1140014, 1710021, 2280028, 3420042, 5130063, 6840084, 10260126, 20520252]

約数ペア:

[(1, 20520252), (2, 10260126), (3, 6840084), (4, 5130063), (6, 3420042), (9, 2280028), (12, 1710021), (18, 1140014), (36, 570007), (647, 31716), (881, 23292), (1294, 15858), (1762, 11646), (1941, 10572), (2588, 7929), (2643, 7764), (3524, 5823), (3882, 5286)]