208021904

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:316

約数の個数: 60

約数和(自身を含む): 424066608

約数和(自身を除く): 216044704

約数列:

[1, 2, 4, 8, 16, 31, 62, 83, 124, 163, 166, 248, 326, 332, 496, 652, 664, 961, 1304, 1328, 1922, 2573, 2608, 3844, 5053, 5146, 7688, 10106, 10292, 13529, 15376, 20212, 20584, 27058, 40424, 41168, 54116, 79763, 80848, 108232, 156643, 159526, 216464, 313286, 319052, 419399, 626572, 638104, 838798, 1253144, 1276208, 1677596, 2506288, 3355192, 6710384, 13001369, 26002738, 52005476, 104010952, 208021904]

約数ペア:

[(1, 208021904), (2, 104010952), (4, 52005476), (8, 26002738), (16, 13001369), (31, 6710384), (62, 3355192), (83, 2506288), (124, 1677596), (163, 1276208), (166, 1253144), (248, 838798), (326, 638104), (332, 626572), (496, 419399), (652, 319052), (664, 313286), (961, 216464), (1304, 159526), (1328, 156643), (1922, 108232), (2573, 80848), (2608, 79763), (3844, 54116), (5053, 41168), (5146, 40424), (7688, 27058), (10106, 20584), (10292, 20212), (13529, 15376)]