204913060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21661}}^1$

素因数の和:21724

約数の個数: 48

約数和(自身を含む): 480376512

約数和(自身を除く): 275463452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 21661, 43322, 86644, 108305, 216610, 238271, 433220, 476542, 931423, 953084, 1191355, 1862846, 2382710, 3725692, 4657115, 4765420, 9314230, 10245653, 18628460, 20491306, 40982612, 51228265, 102456530, 204913060]

約数ペア:

[(1, 204913060), (2, 102456530), (4, 51228265), (5, 40982612), (10, 20491306), (11, 18628460), (20, 10245653), (22, 9314230), (43, 4765420), (44, 4657115), (55, 3725692), (86, 2382710), (110, 1862846), (172, 1191355), (215, 953084), (220, 931423), (430, 476542), (473, 433220), (860, 238271), (946, 216610), (1892, 108305), (2365, 86644), (4730, 43322), (9460, 21661)]