210423760

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 499968000

約数和(自身を除く): 289544240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 139, 149, 254, 278, 298, 508, 556, 596, 635, 695, 745, 1016, 1112, 1192, 1270, 1390, 1490, 2032, 2224, 2384, 2540, 2780, 2980, 5080, 5560, 5960, 10160, 11120, 11920, 17653, 18923, 20711, 35306, 37846, 41422, 70612, 75692, 82844, 88265, 94615, 103555, 141224, 151384, 165688, 176530, 189230, 207110, 282448, 302768, 331376, 353060, 378460, 414220, 706120, 756920, 828440, 1412240, 1513840, 1656880, 2630297, 5260594, 10521188, 13151485, 21042376, 26302970, 42084752, 52605940, 105211880, 210423760]

約数ペア:

[(1, 210423760), (2, 105211880), (4, 52605940), (5, 42084752), (8, 26302970), (10, 21042376), (16, 13151485), (20, 10521188), (40, 5260594), (80, 2630297), (127, 1656880), (139, 1513840), (149, 1412240), (254, 828440), (278, 756920), (298, 706120), (508, 414220), (556, 378460), (596, 353060), (635, 331376), (695, 302768), (745, 282448), (1016, 207110), (1112, 189230), (1192, 176530), (1270, 165688), (1390, 151384), (1490, 141224), (2032, 103555), (2224, 94615), (2384, 88265), (2540, 82844), (2780, 75692), (2980, 70612), (5080, 41422), (5560, 37846), (5960, 35306), (10160, 20711), (11120, 18923), (11920, 17653)]