2021806220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{68443}}^1$

素因数の和:68670

約数の個数: 48

約数和(自身を含む): 4875403008

約数和(自身を除く): 2853596788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2954, 4220, 5908, 7385, 14770, 29540, 68443, 136886, 273772, 342215, 479101, 684430, 958202, 1368860, 1916404, 2395505, 4791010, 9582020, 14441473, 28882946, 57765892, 72207365, 101090311, 144414730, 202180622, 288829460, 404361244, 505451555, 1010903110, 2021806220]

約数ペア:

[(1, 2021806220), (2, 1010903110), (4, 505451555), (5, 404361244), (7, 288829460), (10, 202180622), (14, 144414730), (20, 101090311), (28, 72207365), (35, 57765892), (70, 28882946), (140, 14441473), (211, 9582020), (422, 4791010), (844, 2395505), (1055, 1916404), (1477, 1368860), (2110, 958202), (2954, 684430), (4220, 479101), (5908, 342215), (7385, 273772), (14770, 136886), (29540, 68443)]