1878972020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1540141}}^1$

素因数の和:1540211

約数の個数: 24

約数和(自身を含む): 4010529768

約数和(自身を除く): 2131557748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1540141, 3080282, 6160564, 7700705, 15401410, 30802820, 93948601, 187897202, 375794404, 469743005, 939486010, 1878972020]

約数ペア:

[(1, 1878972020), (2, 939486010), (4, 469743005), (5, 375794404), (10, 187897202), (20, 93948601), (61, 30802820), (122, 15401410), (244, 7700705), (305, 6160564), (610, 3080282), (1220, 1540141)]