20628380

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2693}}^1$

素因数の和:3085

約数の個数: 24

約数和(自身を含む): 43448832

約数和(自身を除く): 22820452

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 2693, 3830, 5386, 7660, 10772, 13465, 26930, 53860, 1031419, 2062838, 4125676, 5157095, 10314190, 20628380]

約数ペア:

[(1, 20628380), (2, 10314190), (4, 5157095), (5, 4125676), (10, 2062838), (20, 1031419), (383, 53860), (766, 26930), (1532, 13465), (1915, 10772), (2693, 7660), (3830, 5386)]