20676800

素因数分解:

$2^6\times 5^2\times {\mathrm{12923}}^1$

素因数の和:12945

約数の個数: 42

約数和(自身を含む): 50881788

約数和(自身を除く): 30204988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12923, 25846, 51692, 64615, 103384, 129230, 206768, 258460, 323075, 413536, 516920, 646150, 827072, 1033840, 1292300, 2067680, 2584600, 4135360, 5169200, 10338400, 20676800]

約数ペア:

[(1, 20676800), (2, 10338400), (4, 5169200), (5, 4135360), (8, 2584600), (10, 2067680), (16, 1292300), (20, 1033840), (25, 827072), (32, 646150), (40, 516920), (50, 413536), (64, 323075), (80, 258460), (100, 206768), (160, 129230), (200, 103384), (320, 64615), (400, 51692), (800, 25846), (1600, 12923)]