205308980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1\times {\mathrm{739}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 447552000

約数和(自身を除く): 242243020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 479, 580, 739, 958, 1478, 1916, 2395, 2956, 3695, 4790, 7390, 9580, 13891, 14780, 21431, 27782, 42862, 55564, 69455, 85724, 107155, 138910, 214310, 277820, 353981, 428620, 707962, 1415924, 1769905, 3539810, 7079620, 10265449, 20530898, 41061796, 51327245, 102654490, 205308980]

約数ペア:

[(1, 205308980), (2, 102654490), (4, 51327245), (5, 41061796), (10, 20530898), (20, 10265449), (29, 7079620), (58, 3539810), (116, 1769905), (145, 1415924), (290, 707962), (479, 428620), (580, 353981), (739, 277820), (958, 214310), (1478, 138910), (1916, 107155), (2395, 85724), (2956, 69455), (3695, 55564), (4790, 42862), (7390, 27782), (9580, 21431), (13891, 14780)]