2018688020

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{210719}}^1$

素因数の和:211207

約数の個数: 24

約数和(自身を含む): 4248115200

約数和(自身を除く): 2229427180

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 9580, 210719, 421438, 842876, 1053595, 2107190, 4214380, 100934401, 201868802, 403737604, 504672005, 1009344010, 2018688020]

約数ペア:

[(1, 2018688020), (2, 1009344010), (4, 504672005), (5, 403737604), (10, 201868802), (20, 100934401), (479, 4214380), (958, 2107190), (1916, 1053595), (2395, 842876), (4790, 421438), (9580, 210719)]