20501200

素因数分解:

$2^4\times 5^2\times {\mathrm{107}}^1\times {\mathrm{479}}^1$

素因数の和:604

約数の個数: 60

約数和(自身を含む): 49818240

約数和(自身を除く): 29317040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 107, 200, 214, 400, 428, 479, 535, 856, 958, 1070, 1712, 1916, 2140, 2395, 2675, 3832, 4280, 4790, 5350, 7664, 8560, 9580, 10700, 11975, 19160, 21400, 23950, 38320, 42800, 47900, 51253, 95800, 102506, 191600, 205012, 256265, 410024, 512530, 820048, 1025060, 1281325, 2050120, 2562650, 4100240, 5125300, 10250600, 20501200]

約数ペア:

[(1, 20501200), (2, 10250600), (4, 5125300), (5, 4100240), (8, 2562650), (10, 2050120), (16, 1281325), (20, 1025060), (25, 820048), (40, 512530), (50, 410024), (80, 256265), (100, 205012), (107, 191600), (200, 102506), (214, 95800), (400, 51253), (428, 47900), (479, 42800), (535, 38320), (856, 23950), (958, 21400), (1070, 19160), (1712, 11975), (1916, 10700), (2140, 9580), (2395, 8560), (2675, 7664), (3832, 5350), (4280, 4790)]