2018202020

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1\times {\mathrm{1741}}^1$

素因数の和:2288

約数の個数: 48

約数和(自身を含む): 4280094000

約数和(自身を除く): 2261891980

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 389, 596, 745, 778, 1490, 1556, 1741, 1945, 2980, 3482, 3890, 6964, 7780, 8705, 17410, 34820, 57961, 115922, 231844, 259409, 289805, 518818, 579610, 677249, 1037636, 1159220, 1297045, 1354498, 2594090, 2708996, 3386245, 5188180, 6772490, 13544980, 100910101, 201820202, 403640404, 504550505, 1009101010, 2018202020]

約数ペア:

[(1, 2018202020), (2, 1009101010), (4, 504550505), (5, 403640404), (10, 201820202), (20, 100910101), (149, 13544980), (298, 6772490), (389, 5188180), (596, 3386245), (745, 2708996), (778, 2594090), (1490, 1354498), (1556, 1297045), (1741, 1159220), (1945, 1037636), (2980, 677249), (3482, 579610), (3890, 518818), (6964, 289805), (7780, 259409), (8705, 231844), (17410, 115922), (34820, 57961)]