201285380

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{21011}}^1$

素因数の和:21499

約数の個数: 24

約数和(自身を含む): 423601920

約数和(自身を除く): 222316540

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 9580, 21011, 42022, 84044, 105055, 210110, 420220, 10064269, 20128538, 40257076, 50321345, 100642690, 201285380]

約数ペア:

[(1, 201285380), (2, 100642690), (4, 50321345), (5, 40257076), (10, 20128538), (20, 10064269), (479, 420220), (958, 210110), (1916, 105055), (2395, 84044), (4790, 42022), (9580, 21011)]