19711480

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2753}}^1$

素因数の和:2943

約数の個数: 32

約数和(自身を含む): 44614800

約数和(自身を除く): 24903320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2753, 3580, 5506, 7160, 11012, 13765, 22024, 27530, 55060, 110120, 492787, 985574, 1971148, 2463935, 3942296, 4927870, 9855740, 19711480]

約数ペア:

[(1, 19711480), (2, 9855740), (4, 4927870), (5, 3942296), (8, 2463935), (10, 1971148), (20, 985574), (40, 492787), (179, 110120), (358, 55060), (716, 27530), (895, 22024), (1432, 13765), (1790, 11012), (2753, 7160), (3580, 5506)]